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Looking for lichen: Church of England launches search for life on gravestones

Church asks people to record species found in local graveyards, which can provide good habitat for complex life formThe still calm of graveyards invites visitors to think about the dead, but now the Church of England is asking people across the country to look for surprising signs of life within them.Graves are a haven for lichen, with more than 700 of the 2,000 British species having been recorded in English churchyards and cemeteries so far. According to surveys by the church, many sites have well more than 100 species on the stonework, trees and in the grassland. Continue reading...

The still calm of graveyards invites visitors to think about the dead, but now the Church of England is asking people across the country to look for surprising signs of life within them.Graves are a haven for lichen, with more than 700 of the 2,000 British species having been recorded in English churchyards and cemeteries so far. According to surveys by the church, many sites have well more than 100 species on the stonework, trees and in the grassland.This summer, the church is running a nature count in burial grounds across the country. From 8-16 June, they are asking people to visit their local graveyard, record which species they find and send it in to the church.A lichen is a complex life form, made up of a stable symbiotic association between a fungus and algae or cyanobacteria. They are very important as habitat for small invertebrates, and they stabilise soil pH as well as carrying out water and nutrient capture and cycling. They play a crucial role in the environment but many of their preferred habitats, including ancient trees, are under threat.The different rocks and building materials in churchyards and cemeteries provide good habitat for many species of lichen. Because graves and stonework in the graveyards are left untouched for many years, the lichen can grow in peace. Because of the slow ageing of the gravestones and differing ages of the stonework, the surface varies from rough to smooth, shaded to exposed, damp to dry, horizontal to vertical. All of these provide different niches for lichens.Graham Usher, the bishop of Norwich and the Church of England’s lead for environmental affairs, said: “I hope many congregations will take part … Last year, I particularly enjoyed finding out about some of the colourful rare lichens that grow on gravestones. These wonderful species are all part of God’s rich creation, reminding us that churchyards are places of the living, not just the dead.”Those running the scheme hope that this year people will hunt for and find particularly rare lichens.Harriet Carty, the director of the charity Caring for God’s Acre, said: “During Love Your Burial Ground Week, people have recorded over 80 species of lichen with lovely names such as common orange lichen, netted shield lichen, crab’s eye, and dark crottle. Old churchyards and cemeteries are particularly important for lichen conservation, especially in areas with few natural outcrops of rock. Some grow very slowly – sometimes less than half a millimetre per year. An individual lichen may be almost as old as the stone it is growing on.skip past newsletter promotionOur morning email breaks down the key stories of the day, telling you what’s happening and why it mattersPrivacy Notice: Newsletters may contain info about charities, online ads, and content funded by outside parties. For more information see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotion“To spot them, look on stonework, branches of trees and even old noticeboards. To submit records during the week, the easiest way is to use a free app called iNaturalist and join the Beautiful Burial Grounds project. The app enables you to take a photo and it helps with identification.”

Environmental justice advocates find hope, healing and community in Pittsburgh

PITTSBURGH — Environmental justice advocates gathered last week to celebrate progress and chart a path to the future while focusing on healing, self care and mental health. May is Mental Health Awareness Month, and the Environmental Justice Summit highlighted the need for self-care and connection among researchers and advocates working to advance justice. Exposure to pollution and anxiety about climate change can negatively impact mental health and people who work to right injustices face the risk of compassion fatigue and burnout. “Advancing justice is emotionally difficult work,” Dani Wilson, executive director of the Cancer and Environment Network of Southwestern Pennsylvania, which coordinated the event alongside the University of Pittsburgh, told EHN. “Taking care of ourselves and each other is critical to fostering moments of joy and connection that help us stay in the movement.” Over three days, attendees strategized about how to advance environmental justice in the greater Pittsburgh region and how to foster resilience with tools like meditation, storytelling, community-building, yoga, crafting and cooking. The event also highlighted the importance of humor, connection and optimism. “This is a social movement,” said Jamil Bey, founder of the nonprofit think tank UrbanKind Institute and newly-appointed director of the Department of City Planning for Pittsburgh. “That means that as part of this work, we’ve gotta have fun with our friends. We’ve gotta stay connected and be able to laugh.” On Friday, Dr. Sacoby Wilson, an environmental health scientist, professor and director of the Center for Community Engagement, Environmental Justice and Health at the University of Maryland, set the tone for the day by declaring himself a “hardcore Steelers fan” and waving a Terrible Towel above his head while shouting “Go Steelers!” Wilson peppered an otherwise serious talk about the ravages of environmental racism and his work developing tools to combat it with football jokes, referencing recent quarterback drama (“two quarterbacks are better than one!”), emphasizing the importance of both offense and defense for communities burdened by pollution and quipping that if we want to score a touchdown, the community needs to work as a team. “Where you live can kill you,” Wilson said, noting that poor, Black and Brown neighborhoods in most places, including southwestern Pennsylvania, face higher levels of exposure to pollution that result in worse health outcomes and lowered life expectancy. These places are also more likely to experience the impacts of climate change and other disproportionate harms.“We need a holistic framework for environmental justice that also acknowledges the need for housing justice, economic justice, social justice, educational justice, reproductive justice and racial justice,” he said, “because these things are all connected. And you can’t get equity without justice… And on a separate note, we’re going to the Super Bowl this year, right?” Environmental justice victoriesOther speakers shared recent victories and progress. Professor Tiffany Gary-Webb, the associate dean for Diversity, Equity and Inclusion at the University of Pittsburgh School of Public Health, shared the results of her work with the Black Environmental Collective and the Black Equity Coalition. The group formed in April 2020 to ensure an equitable response to the COVID-19 pandemic in Pittsburgh and has evolved to continue advancing racial equity in western Pennsylvania. “We used data to try and understand where there were higher rates of COVID and sent those to the county and state health departments. We talked to elected officials and put out our own dashboard with the numbers for Black populations, and through those efforts we were able to get critical resources to our communities and see that data change,” Gary-Webb said, pointing to a study that summarized the group’s effectiveness. “Now we’re continuing that work with a focus on other issues in our communities.” Ash Chan, a farmer and steward at Oasis Farm and Fishery, shared their experience working at a Black-owned garden and market in Pittsburgh’s predominantly Black, working-class Homewood neighborhood, which has a long history of disinvestment and has been without a grocery store since 1994. The organization uses vacant land to grow food and offers classes in urban farming and healthy cooking. “We see food as a driver of social and economic capital, as well as a way that connects people to their cultural roots and their natural environment,” Chan said. “We’re growing what folks want. For example, last year we noticed that elders in the community would line up for okra before we even opened our farmer’s market …so this year we’re growing six different kinds of okra based on that demand.”Bearing witness to injusticeWhile the Summit highlighted progress and promoted resilience, it also emphasized “bearing witness” — a process described by event organizers as actively listening, not looking away, and most importantly, responding — to “the slow violence of environmental degradation on our land.” Participants were invited to attend a “bearing witness ceremony” in Clairton, a small town about 30 miles south of Pittsburgh that regularly sees some of the most polluted air in the country due to emissions from a coal-based U.S. Steel plant. “The injustices are very thick and very brutal in Clairton,” said Melanie Meade, a clean air activist and resident of Clairton. Meade shared the heartbreak she has experienced learning that Clairton’s rate of childhood asthma is more than double the national rate, watching many loved ones die of cancer and witnessing the impacts of poverty and violence. “The people are tired and they are sick and they are in great need, and we need to stand in the way for them.” Later in the day, Kayien Conner, a professor at the University of Pittsburgh’s School of Social Work, told Melanie she’d been moved by her words and asked if she could connect her with an organization she’s involved with that offers mental health resources for Black communities to get additional resources to Clairton. “Yes, please, thank you!” Melanie said. “See? We’re here making connections, collaborating, getting this work done already!” Wilson shouted to applause and laughter.Political optimismSpeakers at the symposium also noted that western Pennsylvania is on the precipice of major political changes that offer many reasons for optimism for environmental advocates, pointing to the election of progressive politicians like Summer Lee and Lindsay Powell and county executive Sara Innamorato, all of whom have pledged to prioritize environmental justice. “We’re really shaking things up politically right now,” said Bey. “If we don’t do this now, then that’s on us. Now is the time. Let’s keep lifting each other up, let’s do our work and let’s get this done.”

PITTSBURGH — Environmental justice advocates gathered last week to celebrate progress and chart a path to the future while focusing on healing, self care and mental health. May is Mental Health Awareness Month, and the Environmental Justice Summit highlighted the need for self-care and connection among researchers and advocates working to advance justice. Exposure to pollution and anxiety about climate change can negatively impact mental health and people who work to right injustices face the risk of compassion fatigue and burnout. “Advancing justice is emotionally difficult work,” Dani Wilson, executive director of the Cancer and Environment Network of Southwestern Pennsylvania, which coordinated the event alongside the University of Pittsburgh, told EHN. “Taking care of ourselves and each other is critical to fostering moments of joy and connection that help us stay in the movement.” Over three days, attendees strategized about how to advance environmental justice in the greater Pittsburgh region and how to foster resilience with tools like meditation, storytelling, community-building, yoga, crafting and cooking. The event also highlighted the importance of humor, connection and optimism. “This is a social movement,” said Jamil Bey, founder of the nonprofit think tank UrbanKind Institute and newly-appointed director of the Department of City Planning for Pittsburgh. “That means that as part of this work, we’ve gotta have fun with our friends. We’ve gotta stay connected and be able to laugh.” On Friday, Dr. Sacoby Wilson, an environmental health scientist, professor and director of the Center for Community Engagement, Environmental Justice and Health at the University of Maryland, set the tone for the day by declaring himself a “hardcore Steelers fan” and waving a Terrible Towel above his head while shouting “Go Steelers!” Wilson peppered an otherwise serious talk about the ravages of environmental racism and his work developing tools to combat it with football jokes, referencing recent quarterback drama (“two quarterbacks are better than one!”), emphasizing the importance of both offense and defense for communities burdened by pollution and quipping that if we want to score a touchdown, the community needs to work as a team. “Where you live can kill you,” Wilson said, noting that poor, Black and Brown neighborhoods in most places, including southwestern Pennsylvania, face higher levels of exposure to pollution that result in worse health outcomes and lowered life expectancy. These places are also more likely to experience the impacts of climate change and other disproportionate harms.“We need a holistic framework for environmental justice that also acknowledges the need for housing justice, economic justice, social justice, educational justice, reproductive justice and racial justice,” he said, “because these things are all connected. And you can’t get equity without justice… And on a separate note, we’re going to the Super Bowl this year, right?” Environmental justice victoriesOther speakers shared recent victories and progress. Professor Tiffany Gary-Webb, the associate dean for Diversity, Equity and Inclusion at the University of Pittsburgh School of Public Health, shared the results of her work with the Black Environmental Collective and the Black Equity Coalition. The group formed in April 2020 to ensure an equitable response to the COVID-19 pandemic in Pittsburgh and has evolved to continue advancing racial equity in western Pennsylvania. “We used data to try and understand where there were higher rates of COVID and sent those to the county and state health departments. We talked to elected officials and put out our own dashboard with the numbers for Black populations, and through those efforts we were able to get critical resources to our communities and see that data change,” Gary-Webb said, pointing to a study that summarized the group’s effectiveness. “Now we’re continuing that work with a focus on other issues in our communities.” Ash Chan, a farmer and steward at Oasis Farm and Fishery, shared their experience working at a Black-owned garden and market in Pittsburgh’s predominantly Black, working-class Homewood neighborhood, which has a long history of disinvestment and has been without a grocery store since 1994. The organization uses vacant land to grow food and offers classes in urban farming and healthy cooking. “We see food as a driver of social and economic capital, as well as a way that connects people to their cultural roots and their natural environment,” Chan said. “We’re growing what folks want. For example, last year we noticed that elders in the community would line up for okra before we even opened our farmer’s market …so this year we’re growing six different kinds of okra based on that demand.”Bearing witness to injusticeWhile the Summit highlighted progress and promoted resilience, it also emphasized “bearing witness” — a process described by event organizers as actively listening, not looking away, and most importantly, responding — to “the slow violence of environmental degradation on our land.” Participants were invited to attend a “bearing witness ceremony” in Clairton, a small town about 30 miles south of Pittsburgh that regularly sees some of the most polluted air in the country due to emissions from a coal-based U.S. Steel plant. “The injustices are very thick and very brutal in Clairton,” said Melanie Meade, a clean air activist and resident of Clairton. Meade shared the heartbreak she has experienced learning that Clairton’s rate of childhood asthma is more than double the national rate, watching many loved ones die of cancer and witnessing the impacts of poverty and violence. “The people are tired and they are sick and they are in great need, and we need to stand in the way for them.” Later in the day, Kayien Conner, a professor at the University of Pittsburgh’s School of Social Work, told Melanie she’d been moved by her words and asked if she could connect her with an organization she’s involved with that offers mental health resources for Black communities to get additional resources to Clairton. “Yes, please, thank you!” Melanie said. “See? We’re here making connections, collaborating, getting this work done already!” Wilson shouted to applause and laughter.Political optimismSpeakers at the symposium also noted that western Pennsylvania is on the precipice of major political changes that offer many reasons for optimism for environmental advocates, pointing to the election of progressive politicians like Summer Lee and Lindsay Powell and county executive Sara Innamorato, all of whom have pledged to prioritize environmental justice. “We’re really shaking things up politically right now,” said Bey. “If we don’t do this now, then that’s on us. Now is the time. Let’s keep lifting each other up, let’s do our work and let’s get this done.”

In a debut book, a love letter to eastern North Carolina — and an indictment of colonialism as a driver of climate change

Lumbee scientist Ryan Emanuel on seeking home, and climate justice, in "On the Swamp: Fighting for Indigenous Environmental Justice."

As the planet grapples with the ever-starker consequences of climate change, a debut book by Lumbee citizen and Duke University scientist Ryan Emanuel makes a convincing argument that climate change isn’t the problem — it’s a symptom. The problem, Emanuel explains in On the Swamp: Fighting for Indigenous Environmental Justice, is settler colonialism and its extractive mindset, which for centuries have threatened and reshaped landscapes including Emanuel’s ancestral homeland in what today is eastern North Carolina. Real environmental solutions, Emanuel writes, require consulting with the Indigenous peoples who have both millennia of experience caring for specific places, and the foresight to avoid long-term disasters that can result from short-term material gain.  Born in Charlotte, North Carolina, in 1977, Emanuel was one of a handful of Native students at school. He spent summers visiting family in Robeson County, North Carolina, the cultural center of the Lumbee Tribe, or People of the Dark Water, where he played outside with other children, occasionally exploring a nearby swamp, one of the many lush waterways that slowly wind through the region, with a cousin. Today, Emanuel visits those swamps to conduct research. He describes them with an abiding, sometimes poetic affection, such as one spring day when he stands calf-deep in swamp water, admiring white dogwood flowers floating on the dark surface as tadpoles dart underneath.  But that affection lives with tension. Emanuel describes trying to collect “reeking” floodwater samples from a ditch after 2018’s Hurricane Florence. In Emanuel’s retelling, a nearby landowner — a white farmer who uses poultry waste as fertilizer — threatens to shoot Emanuel. The sampling, the man believes, would threaten his livelihood, which is wrapped up in North Carolina’s extractive animal farming industry — a system of giant, polluting “concentrated animal feed operations” overwhelmingly owned and operated by white people, and exposing mainly racial minorities to dirty air and water. They are a sharp contrast to the small backyard farms and truck crops grown by Emanuel’s aunties and uncles back in Robeson County a generation ago. As the man holds his gun and lectures about environmental monitoring, Emanuel reflects silently that they are standing on his ancestors’ land. Ever the researcher, he later finds deed books from around the Revolutionary War showing Emanuels once owned more than a hundred acres of land in the vicinity. Still, he holds a wry sympathy for the man, who, he notes, is worried that environmental data will jeopardize his way of life in a place his family has lived for generations.  Eastern North Carolina is a landscape of sandy fields interwoven with lush riverways and swamplands, shaded by knobby-kneed bald cypress trees and soaked with gently-moving waterways the deep brown of “richly steeped tea,” Emanuel writes. In addition to water, the region oozes history: It includes Warren County, known as the birthplace of the environmental justice movement, where local and national civil rights leaders, protesting North Carolina’s decision to dump toxic, PCB-laden soil in a new landfill in a predominantly-Black community, coined the term “environmental racism.” It’s also the mythological birthplace of English colonialism, Roanoke Island. On the Swamp draws a through line from early colonization of the continent to ongoing fights against environmental racism and for climate justice, with detailed stops along the way: Emanuel’s meticulous research illustrates how the white supremacism that settlers used to justify colonialism still harms marginalized communities — both directly, through polluting industries, and indirectly, through climate change — today.  With convoluted waterways accessible only by small boats, and hidden hillocks of high ground where people could camp and grow crops, the swamplands of eastern North Carolina protected Emanuel’s ancestors, along with many other Indigenous peoples, from genocide and enslavement by settlers. Today, with climate change alternately drying out swamplands or flooding them with polluted water from swine and poultry operations, it’s the swamps that need protection, both as a geographic place, and an idea of home. The Lumbee nation is the largest Indigenous nation in the eastern United States, but because the Lumbee Tribe gained only limited federal recognition during the 1950s Termination Era, its sovereignty is still challenged by the federal government and other Indigenous nations. Today, federal and state governments have no legal obligation to consult with the Lumbee Tribe when permitting industry or development, although the federal government does with Indigenous nations that have full federal recognition, and many industrial projects get built in Robeson County.  In writing that’s both affectionate and candid, On the Swamp is a warning about, and a celebration of, eastern North Carolina. Though the region seems besieged by environmental threats, Indigenous nations including the Lumbee are fighting for anticolonial climate justice.  Grist recently spoke with Emanuel about On the Swamp. This interview has been edited for clarity and length.  Q. What motivated you to write this book?  A. Many years ago, I thought that I wanted to write a feel-good book about celebrating the Lumbee River and the Lumbee Tribe’s connection with it, and talking about all the reasons why it’s beautiful, and amazing, and important to us. So I thought that I would write this essentially nature story, right? But as my work evolved, and as I started thinking more critically about what I actually should be writing, I realized that I couldn’t tell that love story about the river without talking about difficult issues around pollution, climate change, and sustainability, and broader themes of environmental justice and Indigenous rights.  Q. Could you tell me about your connection to place? A. I have a relationship to Robeson County that’s complicated by the fact that my family lived in Charlotte, and I went to school in Charlotte, and we went to church in Charlotte. But two weekends every month, and every major holiday, we were in Robeson County. And so I’m an insider, but I’m also not an insider. I’ve got a different lens through which I look at Robeson County because of my urban upbringing, but it doesn’t diminish the love that I have for that place, and it doesn’t keep me from calling it my home. I’ve always called it home. Charlotte was the place where we stayed. And Robeson County was home.  I can’t see the Lumbee River without thinking about the fact that it is physically integrating all of these different landscapes that I care about, [and] a truly beautiful place.  Q. In 2020, after years of protests and legal battles, Dominion Energy and Duke Energy canceled the Atlantic Coast pipeline, which would have carried natural gas 600 miles from West Virginia to Robeson County. In On the Swamp, you note that a quarter of Native Americans in North Carolina lived along the proposed route of the Atlantic Coast Pipeline. What was the meaning of the Atlantic Coast pipeline project for Lumbee people? A. That was an issue very few Lumbee people paid attention to, until they saw the broader context to the project and realized that such an outsized portion of the people who would be affected by the construction and operation of that pipeline were not only Native American, but were specifically Lumbee. I think that’s what generated a lot of outrage, because for better or for worse, we’re used to being treated like a sacrifice zone.  The Atlantic Coast pipeline gave us an easy way to zoom out and ask questions like, “OK, who is going to be affected by this project? Who’s making money off of this project?” It was also a way to engage with larger questions about things like energy policy in the face of climate change and greenhouse gas emissions. [It] brought up philosophical questions of how we feel about the continued use of fossil fuels and the investment in brand new fossil fuel infrastructure that’s going to last 30, 40, or 50 years, at a time when everybody knows we shouldn’t be doing that.  Q. At the end of the day, the Atlantic Coast pipeline didn’t happen. What do you think is the main reason? A. The collective resistance of all of these organizations — tribal nations, committed individuals, grassroots organizations — was enough to stall this project, until the developers realized that they had fallen into the Concorde fallacy. Basically, they got to the point where they realized that spending more money was not going to get them out of the hole they had dug in terms of opposition to this project.  But as long as [developers] hold on to those [property] easements, there’s certainly a threat of future development. Q. You write that people can physically stay on their ancestral land and still have the place taken away by climate change, or by development projects. Can you talk a little bit about still having the land but somehow losing the place? A. The place is not a set of geographic coordinates. It’s an integration of all the natural and built aspects of the environment. And so climate change, deforestation, these other types of industrialized activities, they have the potential to sweep that place out from under you, like having the rug pulled out. All of the things that make a set of geographic coordinates a beloved place can become unraveled, by these unsustainable processes of climate change and unsustainable development. I think that the case studies in [On the Swamp] show some of the specific ways that that can happen.  Q. Could you talk about your experiences as a researcher going out in the field, navigating modern land ownership systems, and how that connects to climate change? A. I don’t know if it’s fair to say that I have to bite my tongue a lot, but I kind of feel that way. When I hear people talk about their ownership of our ancestral lands — I’m a mix of an optimist and a realist, and I understand that we’re not going to turn back the clock. And frankly, I’m not sure I want to, because Lumbee people are ourselves a product of colonial conflict, and we wouldn’t exist as the distinct nation that we are today, if it were not for the colonial violence that we survived. We might exist as our ancestral nations and communities, but we definitely wouldn’t be Lumbee people. So this is a complicated issue for me.  When we think about the front lines of climate change, we don’t often think about Robeson County, North Carolina. But because our community is so attuned to that specific place, we’re not going to pick up and move if the summers get too hot, or if the droughts are too severe. That’s not an option for us. So I think that some of the urgency that I feel is not too different from the urgency that you hear from other [Indigenous] people who are similarly situated on the front lines of climate change. Q. Something else that you make a really strong point about in this book is that something can be a “solution” to climate change, but not sustainable, such as energy companies trying to capture methane at giant hog farms in Robeson County. How should people think about climate solutions, in order to also take into account their negatives? A. The reason why people latch onto this swine biogas capture scheme is if you simply run the numbers, based on the methane and the carbon dioxide budgets, it looks pretty good.  But a swine facility is a lot more than just a source of methane to the atmosphere, right? It’s all these other things in terms of water pollution, and aerosols, and even things like labor issues and animal rights. There are all these other things that are attached to that kind of facility. If you make a decision that means that facility will persist for decades into the future operating basically as-is, that has serious implications for specific people who live nearby, and for society more broadly. We don’t tend to think through all those contingencies when we make decisions about greenhouse gas budgets.  Q. What are some ways that the Lumbee tribe is proactively trying to adapt to climate change? A. Climate change is not an explicit motivation [for the Lumbee Tribe]. If you go and read on the Lumbee Tribe’s housing programs website, I don’t think you’re going to find any rationale that says, “We’re [building housing] to address climate change.” But they are. Getting people into higher-quality, well-insulated and energy-efficient houses is a big deal when it comes to addressing climate change, because we have a lot of people who live in mobile homes, and those are some of the most poorly insulated and least efficient places that you could be. And maybe 40 years ago, when our extreme summer heat wasn’t so bad, that wasn’t such a huge deal. But it’s a huge deal now.  Q. What is the connection between colonialism and climate change for eastern North Carolina, and why is drawing that line necessary?  A. The one sentence answer is, “You reap what you sow.”  The longer answer is, the beginning of making things right is telling the truth about how things became wrong in the first place. And so I really want this book to start conversations on solving these issues. We really can’t solve them in meaningful ways unless we not only acknowledge, but also fully understand, how we got to this point.  This story was originally published by Grist with the headline In a debut book, a love letter to eastern North Carolina — and an indictment of colonialism as a driver of climate change on May 17, 2024.

Threatened species have declined 2% a year since 2000. Nature positive? Far from it.

When Labor took office, it promised to reverse nature’s decline. But that looks more and more like greenwashing

Martin Tobias Aakesson/ShutterstockOur government has great aspirations. It has committed to end extinctions and expand our protected areas to cover 30% of every Australian ecosystem by 2030. This is part of its Nature Positive Plan, aligned with the 2022 Kunming-Montreal global biodiversity pact. The goal is not just to conserve nature but to restore what is being lost. But how can these goals be reconciled with a budget that allocated more public money to carbon capture and storage than biodiversity? This week’s federal budget was a new low point for investment in nature. Environmental groups roundly criticised the “bad budget for nature”, which delivered next-to-no money to protect and recover Australia’s unique and threatened biodiversity. Research has shown Australians want at least 2% of the federal budget spent on nature. Instead, less than 0.1% of the budget spend will support biodiversity in some way. Over the past decade, biodiversity funding has gone down 25% relative to GDP. Let’s say the government decided it was finally time to roll up the sleeves and do something. How would they go about it? What would it take to actually reverse the decline, as the government says it wants to in its Nature Positive approach? Our threatened species populations have been declining by about 2-3% a year over the past 20 years. The first step is to stop the fall. Then the challenge is to restore dwindling species and ecosystems. Populations of endangered species have been falling steadily since 2000. Agami Photo Agency/Shutterstock The Dow Jones for threatened species goes down, down, down Australia now has a Threatened Species Index. Think of it like the Dow Jones for wildlife. It uses trend data from bird, mammal and plant species collected from over 10,000 sites to measure progress for nature in Australia. Last year, Treasurer Jim Chalmers talked up the index as part of the first national “wellbeing budget”, which aimed to measure Australia’s progress across a range of social, health and sustainability indicators. What does the index tell us? You can see for yourself. The health of our threatened species has fallen by about 2-3% a year since the turn of the century. If, as is likely, the trend continues, it will lead to the extinction of many more of our unique native animals and plant species. It will signal the failure of the government’s Nature Positive policy and a global biodiversity tragedy. Given we have had decades of successive decline, what would be needed to reach the goal of nature positive? Nature positive actually has a very specific meaning. It would: halt and reverse nature loss measured from a baseline of 2020, through increasing the health, abundance, diversity and resilience of species, populations and ecosystems so that by 2030 nature is visibly and measurably on the path of recovery. This definition gives us a clear, measurable timeline for action, often described as nature’s answer to net zero. To reach nature positive means halting biodiversity loss by 2030 so that in the future there is much more biodiversity, relative to a 2020 baseline. What would that look like using the Threatened Species Index? To get on track with nature positive, we would have to stop the index declining, stabilise, and then increase from 2030 onwards. Of course, strong environmental laws and aligned policies are needed to effectively prevent further loss of habitat. But we also need to invest in restoring what has been lost. Scientists think this is possible with $2 billion a year to recover our most threatened native plants and animals, and another $2 billion annually to drive ecosystem restoration across Australia. The budget is not nature positive In the budget papers, the government uses the Threatened Species Index as a performance measure for its nature positive goal. It expects the trajectory of the index to be “maintained or improved” out to 2027-28. But given our species and ecosystems are steadily declining, year after year, to maintain a trajectory is simply to embrace the decline. It’s not nature positive at all. The government could make minor improvements, slowing the collapse, and claim it was improving the lot of nature. Imagine if our GDP growth was negative and the government’s goal was merely to slow its decline over the next five years – there would be national uproar. If the government is serious about nature positive – which is an excellent goal – it would be setting more ambitious targets. For instance, the goal could be for the index to climb back up to 2020 levels by the end of the decade. Instead, Labor is planning for biodiversity decline to continue, while describing it as “nature positive”. Watching over the steady decline of our species and calling it nature positive makes about as much sense as opening up new gas fields and calling it net zero. Greenwashing Nature Positive Unfortunately, this is not the first time the government has engaged in nature positive greenwash. In coming weeks, the government will introduce bills to parliament to establish two new agencies, Environment Information Australia and Environmental Protection Australia. But there will be one bill missing – the reformed federal environment laws, intended to give teeth to the nature positive push. The laws were pushed back indefinitely, to the shock of scientists and environmental groups. But let’s be generous and say these laws finally make it to parliament after the next election. Would they be enough to stop our species losses and put the Threatened Species Index onto a nature positive trajectory? Australia’s reformed environmental laws are described as Nature Positive. Are they? Department of Climate Change, Energy, the Environment and Water, CC BY-NC-ND It’s unlikely. The consultation documents show the government is aiming to deliver “net positive outcomes”, whereby development impacts to threatened species and ecosystems are more than compensated for. But we don’t know the detail. How much improvement is the government aiming for? In the draft laws, this figure is listed simply as “at least X%”. Time to aim higher It is hard not to feel dispirited over the government’s backtracking on its promise to: not shy away from difficult problems or accept environmental decline and extinction as inevitable. But we cannot give up. As the plight of nature worsens, even iconic species such as the koala and platypus are now at risk. As ecosystems collapse, our food security, health and wellbeing, communities and businesses will suffer. Perhaps one day we will have a government able to grasp the nettle and actually tackle the nature crisis – for the sake of all of us. Read more: Australia's long-sought stronger environmental laws just got indefinitely deferred. It's back to business as usual Megan C Evans has received funding from various sources, including the Australian Research Council through a Discovery Early Career Research Award (2020-2023), the Australian Conservation Foundation, the Department of Agriculture, Water and the Environment, WWF Australia, and the National Environmental Science Program's Threatened Species Recovery Hub.Brendan Wintle has received funding from The Australian Research Council, the Victorian State Government, the NSW State Government, the Queensland State Government, the Commonwealth National Environmental Science Program, the Ian Potter Foundation, the Hermon Slade Foundation, and the Australian Conservation Foundation. Wintle is a Board Director of Zoos Victoria and a lead councillor of the Biodiversity Council.Hugh Possingham works for the University of Queensland, Accounting for Nature, and the Biodiversity Council. He currently receives grant funding from the Australian Research Council. He is affiliated with over 20 organisations providing pro-bono or limited renumeration, board or committee level advice. These include: BirdLife Australia (vice-President), The University of Adelaide (Environment Institute Board Chair), various state and federal governments, the Terrestrial Ecosystem Research Network (Board Chair), AgForce, and several NGOs, etc.

Environmental Defenders Office did not breach funding rules while opposing Santos gas project, review finds

Tanya Plibersek ordered investigation after judge accused law firm of ‘subtle coaching’ of Tiwi Island traditional owners during legal challengeFollow our Australia news live blog for latest updatesGet our morning and afternoon news emails, free app or daily news podcastThe Environmental Defenders Office did not breach the conditions of its $8.2m in federal funding according to a government review of the legal firm’s conduct.The environment minister, Tanya Plibersek, requested the review after a federal court judgment in January made sharp criticisms of the EDO’s conduct in a legal matter against Santos.Sign up for Guardian Australia’s free morning and afternoon email newsletters for your daily news roundup Continue reading...

The Environmental Defenders Office did not breach the conditions of its $8.2m in federal funding according to a government review of the legal firm’s conduct.The environment minister, Tanya Plibersek, requested the review after a federal court judgment in January made sharp criticisms of the EDO’s conduct in a legal matter against Santos.The case, brought by Tiwi Island traditional owners, argued Santos had not properly assessed submerged cultural heritage near an area it proposed to construct a pipeline for its Barossa offshore gas project off the Northern Territory.The traditional owners sought an injunction on pipeline works until the gas company submitted a new environmental plan and it was assessed by the National Offshore Petroleum Safety and Environmental Management Authority (Nopsema).The case was dismissed in January and the judgment by Justice Natalie Charlesworth made adverse findings against the EDO that one of its lawyers and a cultural heritage consultant engaged in a form of “subtle coaching” in a meeting with Tiwi islanders. Charlesworth also found that evidence from one expert witness involved “confection”.Following the judgment, the opposition leader, Peter Dutton, vowed to defund the EDO if the Coalition won the next election.The former prime minister, Tony Abbott, cut the EDO’s funding in 2013, ending 20 years of Commonwealth funding for the public interest law firm. The funding was restored by the Albanese government.Plibersek’s department sought independent legal advice on whether the conduct described in Charlesworth’s judgment breached the EDO’s grant conditions.The business grants hub within the Department of Industry, Science and Resources, which administers the grant agreement, also assessed whether any possible fraud had occurred in relation to the grant agreement.“The legal advice was that the comments in the judgment do not provide a reasonable basis to conclude that the EDO had breached the terms of the grant agreement,” the final report states.skip past newsletter promotionOur Australian morning briefing breaks down the key stories of the day, telling you what’s happening and why it mattersPrivacy Notice: Newsletters may contain info about charities, online ads, and content funded by outside parties. For more information see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotionThe business grants hub also found the EDO “has been compliant with the grant conditions to date” and there was no evidence indicating possible fraud.The report says, based on this advice, the department of climate change, energy, environment and water had concluded the EDO was not in breach of its agreement.But the department did find further steps should be taken and said it was working with the business grants hub to implement “additional assurances” in relation to the grant agreement and to negotiate some variations to “expressly clarify the standards expected by the Commonwealth of the EDO”.The EDO chief executive, David Morris, welcomed the review’s findings.“We are proud to deliver high-quality legal services under the terms of the Federal Government’s grant agreement, and to represent those seeking to exercise their right and to protect nature and the climate,” he said. ”Without federal support, many Australians would be unable to access the legal system or participate fully in environmental decision making.”

MIT Engineers Create Game-Changing Lead Detection Device

A new chip-scale device could provide sensitive detection of lead levels in drinking water, whose toxicity affects 240 million people worldwide. Engineers at MIT and...

Artist’s impression of the chip surface, showing the on-chip light interferometer used to sense the presence of lead. The lead binding process to the crown ether is shown in the inset. Credit: Jia Xu Brian SiaA new chip-scale device could provide sensitive detection of lead levels in drinking water, whose toxicity affects 240 million people worldwide.Engineers at MIT and collaborators have developed a compact, inexpensive technology to detect and measure lead in water. This new system uses a photonic chip and crown ethers to capture lead ions, providing accurate, near-instant results with just a droplet of water.Engineers at MIT, Nanyang Technological University, and several companies have developed a compact and inexpensive technology for detecting and measuring lead concentrations in water, potentially enabling a significant advance in tackling this persistent global health issue. The World Health Organization estimates that 240 million people worldwide are exposed to drinking water that contains unsafe amounts of toxic lead, which can affect brain development in children, cause birth defects, and produce a variety of neurological, cardiac, and other damaging effects. In the United States alone, an estimated 10 million households still get drinking water delivered through lead pipes.Testing setup of the photonic chip sensor, including microfluidic chamber to transport analyte solutions and optical fibers on the sides to measure the photonic response of the chip. Credit: Courtesy of the researchers“It’s an unaddressed public health crisis that leads to over 1 million deaths annually,” says Jia Xu Brian Sia, an MIT postdoc and the senior author of the paper describing the new technology.However, testing for lead in water requires expensive, cumbersome equipment and typically requires days to get results. Or, it uses simple test strips that simply reveal a yes-or-no answer about the presence of lead but no information about its concentration. Current EPA regulations require drinking water to contain no more than 15 parts per billion of lead, a concentration so low it is difficult to detect.Innovative Photonic Chip TechnologyThe new system, which could be ready for commercial deployment within two or three years, could detect lead concentrations as low as 1 part per billion, with high accuracy, using a simple chip-based detector housed in a handheld device. The technology gives nearly instant quantitative measurements and requires just a droplet of water.The findings are described in a paper published on May 14 in the journal Nature Communications, by Sia, MIT graduate student and lead author Luigi Ranno, Professor Juejun Hu, and 12 others at MIT and other institutions in academia and industry.Jia Xu Brian Sia (left) and Luigi Ranno (right) showcasing the fully packaged sensor chip and microfluidic chamber. Credit: Courtesy of the researchersThe team set out to find a simple detection method based on the use of photonic chips, which use light to perform measurements. The challenging part was finding a way to attach to the photonic chip surface certain ring-shaped molecules known as crown ethers, which can capture specific ions such as lead. After years of effort, they were able to achieve that attachment via a chemical process known as Fischer esterification. “That is one of the essential breakthroughs we have made in this technology,” Sia says.In testing the new chip, the researchers showed that it can detect lead in water at concentrations as low as one part per billion. At much higher concentrations, which may be relevant for testing environmental contamination such as mine tailings, the accuracy is within 4 percent.Versatility and Practical ApplicationsThe device works in water with varying levels of acidity, ranging from pH values of 6 to 8, “which covers most environmental samples,” Sia says. They have tested the device with seawater as well as tap water, and verified the accuracy of the measurements.In order to achieve such levels of accuracy, current testing requires a device called an inductive coupled plasma mass spectrometer. “These setups can be big and expensive,” Sia says. The sample processing can take days and requires experienced technical personnel.While the new chip system they developed is “the core part of the innovation,” Ranno says, further work will be needed to develop this into an integrated, handheld device for practical use. “For making an actual product, you would need to package it into a usable form factor,” he explains. This would involve having a small chip-based laser coupled to the photonic chip. “It’s a matter of mechanical design, some optical design, some chemistry, and figuring out the supply chain,” he says. While that takes time, he says, the underlying concepts are straightforward.The system can be adapted to detect other similar contaminants in water, including cadmium, copper, lithium, barium, cesium, and radium, Ranno says. The device could be used with simple cartridges that can be swapped out to detect different elements, each using slightly different crown ethers that can bind to a specific ion.Impact on Global Health“There’s this problem that people don’t measure their water enough, especially in the developing countries,” Ranno says. “And that’s because they need to collect the water, prepare the sample, and bring it to these huge instruments that are extremely expensive.” Instead, “having this handheld device, something compact that even untrained personnel can just bring to the source for on-site monitoring, at low costs,” could make regular, ongoing widespread testing feasible.Hu, who is the John F. Elliott Professor of Materials Science and Engineering, says, “I’m hoping this will be quickly implemented, so we can benefit human society. This is a good example of a technology coming from a lab innovation where it may actually make a very tangible impact on society, which is of course very fulfilling.”“If this study can be extended to simultaneous detection of multiple metal elements, especially the presently concerning radioactive elements, its potential would be immense,” says Hou Wang, an associate professor of environmental science and engineering at Hunan University in China, who was not associated with this work.Wang adds, “This research has engineered a sensor capable of instantaneously detecting lead concentration in water. This can be utilized in real-time to monitor the lead pollution concentration in wastewater discharged from industries such as battery manufacturing and lead smelting, facilitating the establishment of industrial wastewater monitoring systems. I think the innovative aspects and developmental potential of this research are quite commendable.”Wang Qian, a principal research scientist at the Institute of Materials Research in Singapore, who also was not affiliated with this work, says, “The ability for the pervasive, portable, and quantitative detection of lead has proved to be challenging primarily due to cost concerns. This work demonstrates the potential to do so in a highly integrated form factor and is compatible with large-scale, low-cost manufacturing.”Reference: “Crown ether decorated silicon photonics for safeguarding against lead poisoning” by Luigi Ranno, Yong Zen Tan, Chi Siang Ong, Xin Guo, Khong Nee Koo, Xiang Li, Wanjun Wang, Samuel Serna, Chongyang Liu, Rusli, Callum G. Littlejohns, Graham T. Reed, Juejun Hu, Hong Wang and Jia Xu Brian Sia, 14 May 2024, Nature Communications.DOI: 10.1038/s41467-024-47938-6The team included researchers at MIT, at Nanyang Technological University and Temasek Laboratories in Singapore, at the University of Southampton in the U.K., and at companies Fingate Technologies, in Singapore, and Vulcan Photonics, headquartered in Malaysia. The work used facilities at MIT.nano, the Harvard University Center for Nanoscale Systems, NTU’s Center for Micro- and Nano-Electronics, and the Nanyang Nanofabrication Center.

Alarming Virus Evolution – Scientists Identify First-Ever Mammal-to-Human Bird Flu Case

The Biological Threat Research Laboratory (BTRL) at Texas Tech University was instrumental in identifying the first case of highly pathogenic avian influenza (HPAI) A (H5N1)...

Texas Tech’s BTRL confirmed the first human case of HPAI A (H5N1) transmitted from a dairy cow, marking a significant milestone in understanding the virus’s transmission and prompting immediate and effective collaboration with the CDC for further research and response.The Biological Threat Research Laboratory (BTRL) at Texas Tech University was instrumental in identifying the first case of highly pathogenic avian influenza (HPAI) A (H5N1) being transmitted from a mammal (dairy cow) to a human.The case was made public in an article published in the New England Journal of Medicine. Steve Presley, the director of The Institute of Environmental and Human Health (TIEHH) and the BTRL, and Cynthia Reinoso Webb, the biological threat coordinator at TIEHH, were co-authors on the journal publication.The journal article explains that in March a farm worker who reported no contact with sick or dead birds, but who was in contact with dairy cattle, began showing symptoms in the eye and samples were collected by the regional health department to test for potential influenza A. Initial testing of the samples was performed at the BTRL, which is a component of the Centers for Disease Control and Prevention (CDC) Laboratory Response Network-Biological (LRN-B) located at TIEHH.Significance of the Case“It’s a huge thing that the virus has jumped from birds to mammals, dairy cows in this case, and then to humans,” Presley said. “That’s why this paper in the New England Journal of Medicine is very significant. It’s going to lay the foundation, I believe, for a lot of research in the future of how the virus is evolving.”The involvement of Texas Tech’s BTRL is a continuation of the partnership between regional, state, and federal public health partners.“Being part of the CDC LRN-B, we have the standing capability to test for a lot of biological threats and some that are considered emergent,” Reinoso Webb explained.The lab’s standby status allowed Reinoso Webb and the Texas Tech BTRL team to respond quickly to the needs of the regional public health authority. Knowing the potential dangers of the virus, Reinoso Webb pushed the testing into the safest laboratory available, and the team went to work.Having received the samples in the early evening, results were being reported to regional, state, and federal levels within hours. By the next day, the samples were on their way to the CDC for further testing and confirmation.“We were on the phone with the CDC until around midnight discussing different scenarios and follow-up requirements,” Reinoso Webb said. “There is a lot of federal reporting. It was a very complicated case, even though it was two samples and one patient.“But we had this wonderful communication with the CDC and made sure we did everything by the book. This is how it’s been structured, and this is how the communication was supposed to happen.”Reference: “Highly Pathogenic Avian Influenza A(H5N1) Virus Infection in a Dairy Farm Worker” by Timothy M. Uyeki, Scott Milton, Cherissa Abdul Hamid, Cynthia Reinoso Webb, Steven M. Presley, Varun Shetty, Susan N. Rollo, Diana L. Martinez, Saroj Rai, Emilio R. Gonzales, Krista L. Kniss, Yunho Jang, Julia C. Frederick, Juan A. De La Cruz, Jimma Liddell, Han Di, Marie K. Kirby, John R. Barnes and C. Todd Davis, 2 May 2024, New England Journal of Medicine.DOI: 10.1056/NEJMc2405371

Isotopic Analysis Reveals Origins of Organic Matter in Martian Sediments

Mars’ ancient geological features suggest the presence of water in the past, and recent studies of sediments from Gale Crater reveal organic matter with unique...

Studies on Mars’ Gale Crater sediments show unique organic compositions that suggest atmospheric influences, highlighting non-biological processes in organic matter formation. (Artist’s concept.) Credit: SciTechDaily.comMars’ ancient geological features suggest the presence of water in the past, and recent studies of sediments from Gale Crater reveal organic matter with unique isotopic compositions, pointing to atmospheric processes, not biological activity, as the source of this organic material.Mars’ Geological PastAlthough Mars presents a barren, dusty landscape with no signs of life so far, its geological features such as deltas, lakebeds, and river valleys strongly suggest a past where water once flowed abundantly on its surface. To explore this possibility, scientists examine sediments preserved near these formations. The composition of these sediments holds clues about the early environmental conditions, the processes that shaped the planet over time, and even potential signs of past life.Insights From Gale CraterIn one such analysis, sediments collected by the Curiosity rover from Gale Crater, believed to be an ancient lake formed approximately 3.8 billion years ago due to an asteroid impact, revealed organic matter. However, this organic matter had a significantly lower amount of the carbon-13 isotope (13C) relative to carbon-12 isotopes (12C) compared to what is found on Earth, suggesting different processes of organic matter formation on Mars. The atmospheric origin of organic matter suggests that Mar surfaces may contain larger amounts of organic compounds than previously anticipated. Credit: Tokyo TechNew Research FindingsNow, a study elucidates this discrepancy, finding that the photodissociation of carbon dioxide (CO2) in the atmosphere to carbon monoxide (CO) and subsequent reduction result in organic matter with depleted 13C content. The research, led by Professor Yuichiro Ueno from Tokyo Institute of Technology and Professor Matthew Johnson from the University of Copenhagen, was published in the journal Nature Geoscience on May 9, 2024.“On measuring the stable isotope ratio between 13C and 12C, the Martian organic matter has a 13C abundance of 0.92% to 0.99% of the carbon that makes it up. This is extremely low compared to Earth’s sedimentary organic matter, which is about 1.04%, and atmospheric CO2, around 1.07%, both of which are biological remnants, and are not similar to the organic matter in meteorites, which is about 1.05%,” explains Ueno.Isotopic Fractionation on MarsEarly Mars had an atmosphere rich in CO2 containing both 13C and 12C isotopes. The researchers simulated different conditions of the Martian atmosphere’s composition and temperature in laboratory experiments. They found that when 12CO2 is exposed to solar ultraviolet (UV) light, it preferentially absorbs UV radiation, leading to its dissociation into CO depleted in 13C, leaving behind CO2 enriched in 13C.This isotopic fractionation (separation of isotopes) is also observed in the upper atmospheres of Mars and Earth, where UV irradiation from the Sun causes CO2 to dissociate into CO with depleted 13C content. In a reducing Martian atmosphere, CO transforms into simple organic compounds such as formaldehyde and carboxylic acids. During the early Martian era, with surface temperatures close to the freezing point of water and not exceeding 300 K (27°C), these compounds may have dissolved in water and settled in sediments.Implications for Martian SedimentsUsing model calculations, the researchers found that in an atmosphere with a CO2 to CO ratio of 90:10, a 20% conversion of CO2 to CO would lead to sedimentary organic matter with δ13CVPDB values of -135‰. Also, the remaining CO2 would be enriched in 13C with δ13CVPDB values of +20‰. These values closely match those seen in sediments analyzed by the Curiosity rover and estimated from a Martian meteorite. This finding points to an atmospheric process rather than a biological one as the main source of organic matter formation on early Mars.“If the estimation in this research is correct, there may be an unexpected amount of organic material present in Martian sediments. This suggests that future explorations of Mars might uncover large quantities of organic matter,” says Ueno.Reference: “Synthesis of 13C-depleted organic matter from CO in a reducing early Martian atmosphere” by Yuichiro Ueno, Johan A. Schmidt, Matthew S. Johnson, Xiaofeng Zang, Alexis Gilbert, Hiroyuki Kurokawa, Tomohiro Usui and Shohei Aoki, 9 May 2024, Nature Geoscience.DOI: 10.1038/s41561-024-01443-z

Denser housing can be greener too – here’s how NZ can build better for biodiversity

The majority of 25 surveyed developments around New Zealand lacked healthy, ecologically meaningful vegetation. Applying biodiversity targets for medium-density housing could turn this around.

Getty ImagesCities across Aotearoa New Zealand are trying to solve a housing crisis, with increasing residential density a key solution. But not everyone is happy about the resulting loss of natural habitats and biodiversity. Some homeowners in Dunedin, for example, are vehemently opposed to potential higher-density development in their area. They fear the loss of nature and increased use of concrete and other non-permeable surfaces it might entail. One developer acknowledged the “juggling act” councils can face when trying to balance the need for more homes with preserving natural environments. The issue isn’t going away, given the national shortage of affordable housing and the growing emphasis on increased density under the National Policy Statement on Housing and Urban Development. However, we argue that incorporating nature within built environments is not just possible, it’s essential. Density with biodiversity Urban nature helps buffer the devastating impacts of increasingly frequent and serious climate-related events in cities, such as flooding and heat waves. By embracing nature-based solutions, we can lessen the impact of these events while enjoying biodiverse surroundings (which are also beneficial to human wellbeing). Initiatives in other countries can be a guide. Melbourne, for example, has a goal of planting 3,000 trees a year to achieve a 40% tree canopy cover by 2040. This is to combat increasing temperatures and improve biodiversity. Toronto has policies to address air quality, the urban “heat island” effect, and stormwater management. The most significant is a green-roof bylaw requiring all high-density developments to have 20-60% of their roof area vegetated. Unfortunately, New Zealand has not been good at creating biodiverse residential developments. Higher density often results in less green space and more hard surfaces. Hard facts: medium-density often means a loss of permeable areas, including green spaces. Getty Images Urban nature has value Our research group, Aotearoa BiodiverCity (part of the publicly-funded People, Cities, Nature research programme) explores how to achieve more biodiverse cities through better and more strategically designed medium-density development. As part of this ongoing and yet-to-be published work, we have examined 25 developments of different sizes across four New Zealand cities. This revealed considerable variation in how well developers had integrated biodiversity. The majority were glaringly deficient in healthy, ecologically meaningful vegetation. Our analysis revealed that shifts to medium-density often mean a loss of nearly two-thirds of the original permeable area, including green spaces vital for stormwater management and biodiversity. We’ve discovered numerous barriers and challenges to achieving nature-rich cities. Fundamental is a lack of national policy and regional strategies that specifically consider biodiversity in residential development. Instead, the focus is on protecting significant indigenous habitats, reflecting an apparent assumption that biodiversity in residential areas has no value. In fact, it has enormous potential to contribute to city-wide biodiversity, and is vital to human wellbeing and climate change adaptation. Set targets and measure outcomes The lack of guidelines also creates large differences between council standards for developments. How much space is left for planting, for example, is dictated by the maximum building coverage on a site. This can range from 35% in Upper Hutt to as high as 50-60% in Lower Hutt, Wellington and Dunedin. When district plans and residential design guidelines do call for maintaining or increasing vegetation, there are no specific biodiversity goals or targets. Nor are there plans to measure and monitor biodiversity during or after construction. Professionals working on urban built environments reveal a tangle of barriers to implementing greening strategies. Cost is a big one, with developers perceiving a safer return on investment from prioritising dwellings or car parking, despite many people being willing to pay more for homes in greener neighbourhoods. Design guidelines, including landscaping specifications, are often subject to developer discretion. This can mean they adhere to few environmental mitigation measures, and potentially neglect the natural environment. More broadly, New Zealand has few precedents for incorporating green elements in denser developments. Solutions such as vegetated roofs and water-sensitive urban design are seen as experimental and risky rather than mainstream. Strengthening council district plans to include requirements for preserving and enhancing urban green spaces should be a priority. This would include clear and attainable biodiversity targets, with quantifiable outcomes. Rooftop vegetation is one solution to balancing nature with residential development. Getty Images A new tool to score developments Our team is developing the New Zealand Biodiversity Factor (NZBF), an assessment tool tailored for residential neighbourhoods. Once available, it will offer clear guidance on integrating nature into new developments, and provide performance scores and practical improvement suggestions. Using urban design principles sensitive to biodiversity, the NZBF will score developments on a variety of features: extent of permeable area, vegetation quality in public and private spaces, and street layout. Driveways and roads are the “monsters” eating up valuable permeable space. Prioritising good public and other transport options over car parking outside every home helps create a more biodiverse living environment. Loss of permeable space can be mitigated at the planning stage by exploring housing layouts, building higher, and fostering greener urban landscapes. Councils have many things to consider beyond biodiversity, of course, as well as limited financial resources for maintaining natural areas. This could be offset by enabling residents to manage their own neighbourhood green spaces, as has been successfully implemented overseas. But attaching biodiversity targets to residential development will be a necessary first step. As urban populations grow, we’ll have to adapt to higher-density living. That does not mean we have to miss out on nearby nature. Yolanda van Heezik receives funding from the Ministry of Business, Innovation & Employment's Endeavour Fund.Christopher K. Woolley receives funding from the Ministry of Business, Innovation & Employment's Endeavour Fund.Jacqueline Theis receives funding from the Ministry of Business, Innovation & Employment's Endeavour Fund.Maibritt Pedersen Zari receives funding from the Ministry of Business, Innovation & Employment's Endeavour Fund.

Some Dinosaurs Evolved to Be Warm-Blooded 180 Million Years Ago, Study Suggests

Researchers studied the geographic distribution of dinosaurs to draw conclusions about whether they could regulate their internal temperatures

An artist's rendering of a feathered dinosuar in the snow. Feathers would have allowed dinosaurs, ancestors of birds, to trap their body heat in cold climates. Davide Bonadonna / Universidade de Vigo / UCL Two major groups of dinosaurs may have been warm-blooded—having evolved the ability to regulate their body temperatures—around 180 million years ago, according to a new study. Scientists used to think that all dinosaurs were cold-blooded, meaning that, like modern lizards, their body temperatures were dependent on their surroundings. While scientists have since discovered that some dinosaurs were actually warm-blooded, they haven’t been able to pinpoint when this adaptation evolved, according to a statement from University College London. The new findings suggest that theropods, a group of mostly carnivorous dinosaurs including Tyrannosaurus rex and Velociraptor, as well as the ornithischians, which include the mostly plant-eating relatives of Stegosaurus and Triceratops, may have both developed warm-bloodedness in the early Jurassic Period. This change might have been prompted by global warming that followed volcanic eruptions, according to the results published Wednesday in the journal Current Biology. The study is the “first real attempt to quantify broad patterns that some of us had thought about previously,” Anthony Fiorillo, executive director of the New Mexico Museum of Natural History & Science who was not involved in the work, tells CNN’s Katie Hunt. “Their modeling helps create a robustness to our biogeographical understanding of dinosaurs and their related physiology.” Warm-blooded animals, which include mammals and birds, use energy from food to maintain a constant body temperature. Their bodies can shiver to generate heat, and they may sweat, pant or dilate their blood vessels to cool off. As a result, these animals can live in a wide range of environments. On the other hand, cold-blooded creatures must move to different environments to control their body temperature. They might lie in the sun to warm up and move under a rock or into the water to cool off. Previous work had uncovered evidence of warm-bloodedness in both theropods and ornithischians, such as feathers that trap body heat, according to the university’s statement. In the new study, the researchers studied the geographic spread of dinosaurs during the Mesozoic Era, which lasted from 230 million to 66 million years ago, by examining 1,000 fossils, climate models and dinosaur evolutionary trees. They found that theropods and ornithischians lived in wide-ranging climates, and during the early Jurassic, these two groups migrated to colder areas. This suggested they had developed the ability to generate their own heat. “If something is capable of living in the Arctic, or very cold regions, it must have some way of heating up,” Alfio Allesandro Chiarenza, a co-author of the study and a paleontologist at University College London, tells Adithi Ramakrishnan of the Associated Press (AP). Long-necked sauropods, on the other hand, which include the Brontosaurus, seemed restricted to areas with higher temperatures. The team suggests this means sauropods could have been cold-blooded. “It reconciles well with what we imagine about their ecology,” Chiarenza says to CNN. “They were the biggest terrestrial animals that ever lived. They probably would have overheated if they were hot-blooded.” At around the same time, volcanic eruptions led to global warming and the extinction of some plant species. “The adoption of endothermy, perhaps a result of this environmental crisis, may have enabled theropods and ornithischians to thrive in colder environments, allowing them to be highly active and sustain activity over longer periods, to develop and grow faster and produce more offspring,” Chiarenza says in the statement. Jasmina Wiemann, a paleobiologist at the Field Museum of Natural History who was not involved in the new research, published a study in 2022 that came to a different conclusion: Based on oxygen intake in dinosaur fossils, she found that ornithischians were more likely cold-blooded, while sauropods were more likely warm-blooded. She tells the AP that considering information on dinosaurs’ body temperatures and diets, not just their geographic distribution, can help scientists understand when dinosaurs evolved to be warm-blooded. Get the latest stories in your inbox every weekday.

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