Environment

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Environmental and ecological discussion, particularly of things like weather and other natural phenomena (especially if they're not breaking news).

See also our Nature and Gardening community for discussion centered around things like hiking, animals in their natural habitat, and gardening (urban or rural).


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No governments will realistically be able to cover the damage when multiple high-cost events happen in rapid succession, as climate models predict, Thallinger said. Australia’s disaster recovery spending has already increased sevenfold between 2017 and 2023, he noted.

The idea that billions of people can just adapt to worsening climate impacts is a “false comfort”, he said: “There is no way to ‘adapt’ to temperatures beyond human tolerance … Whole cities built on flood plains cannot simply pick up and move uphill.”

At 3C of global heating, climate damage cannot be insured against, covered by governments, or adapted to, Thallinger said: “That means no more mortgages, no new real estate development, no long-term investment, no financial stability. The financial sector as we know it ceases to function. And with it, capitalism as we know it ceases to be viable.”

Shame no one was sounding the alarm bells when we still had a chance to reverse this outcome.

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ANU climate scientist says ‘everyone is getting fatigued these records keep falling – it’s now incredibly predictable’

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In the decade since the world pledged to combat climate change under the Paris Agreement, global energy systems have undergone a revolution. The United States experienced a sixfold increase in solar power, and wind power more than doubled. And there are now more than 40 million electric vehicles on roads worldwide.

But ending our dependence on fossil fuels and adopting this new, greener technology requires a whole lot of metal.

It takes lithium and cobalt to build the batteries that power electric vehicles and e-bikes, nickel and rare earth elements to construct solar panels and wind turbines, and copper to build the wires that move renewable energy from the sunny and windy places it’s generated to the cities and factories where it’s most needed.

The faster we move away from fossil fuels, the more desperately we will need these metals and other so-called critical minerals. In an ambitious energy transition, global demand for them will quadruple by 2040, according to the International Energy Agency. That means digging vast new open-pit mines, building powerful new refineries to distill raw ore, and opening new factories to manufacture batteries and turbines.

Just as the 20th century was defined by the geography of oil, the 21st century could be defined by the new geography of metal — in particular by snarled industrial supply lines that often flow from the developing world to the developed world and back again.

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The landmark youth-led climate lawsuit Juliana v. United States has come to a close without ever seeing a trial. The case, filed in 2015 by Our Children’s Trust on behalf of 21 youth plaintiffs, faced 10 years of opposition from the federal government because it argued that the U.S. government violated young people’s constitutional rights to life, liberty, and property through its unwavering support of the fossil fuel industry. Ultimately, the Department of Justice successfully pushed back against the plaintiffs’ efforts. On March 24, the Supreme Court denied the plaintiff’s petition for review, upholding the lower court’s 2024 decision to throw out the case.

“It’s the end of the case, but it’s not the end of the movement,” said Michael Burger, the executive director of the Sabin Center for Climate Change Law at Columbia Law School. Burger told Prism that Juliana stood at the “forefront of a global phenomenon of youth-led climate litigation,” preceding other lawsuits based on state constitutions that would see success, including Held v. Montana and Navahine v. Hawai’i. In 2023, a Montana judge ruled that the state must consider climate impacts when permitting new fossil fuel projects, and in 2024, Hawai’i reached an agreement to decarbonize its transportation sector.

Three presidential administrations—Obama, Trump, and Biden—challenged Juliana, but never on the substance of its claims. Administrations argued that courts weren’t the place to write policy, that the government would be irreparably harmed from a trial, and that there are no explicit provisions in the U.S. Constitution that guard against impacts of climate change. Lawyers for the plaintiffs disagreed, basing the suit on what’s known as the Public Trust Doctrine, which requires that governments protect natural resources for the enjoyment and use of the public. The case sought declaratory relief from the court, which is a statement addressing the constitutionality of a policy that could then trigger policy changes from legislative bodies and federal and state agencies. A well-known example of declaratory judgment that led to broad changes is Brown v. Board of Education.

The government’s successful repudiation of Juliana raises questions about the efficacy of pursuing climate action through the judiciary, especially when the defendant is the government itself rather than corporations. But Burger told Prism that there’s much to be gleaned from Juliana.

“I think that this case has served as a model of a type of lawsuit that seeks to hold national or state governments accountable and to increase the ambition of government climate commitments by relying on legal claims and narratives grounded in youth, in climate science, in the impacts of climate change,” Burger said.

Earlier this week, Prism’s environmental justice reporter ray levy uyeda spoke with Juliana plaintiff Sahara Valentine via video call about the significance of Juliana v. United States, what they’ve learned from a decade of climate organizing in the legal realm, and what’s next.

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This week, a jury in North Dakota found Greenpeace liable for more than $660 million in damages to Energy Transfer, the company behind the Dakota Access Pipeline. It was a monumental verdict that many civil society groups and First Amendment lawyers have warned could chill free speech.

The case stems from the protests that erupted near the Standing Rock Indian Reservation in 2016, when Indigenous activists and environmentalists gathered to oppose construction of the pipeline, which crossed the Missouri River close to the reservation. Standing Rock leaders warned that a spill could contaminate their water supply and that construction would disturb sacred lands, and said they had not been properly consulted.

Some of the protests included acts of vandalism and clashes with pipeline company employees and law enforcement, and Energy Transfer accused Greenpeace of providing financial and other support to the people involved. Greenpeace said it played only a minor role in the protests.

The jury ruled against Greenpeace on numerous counts, however, finding it liable for trespass, conspiracy, defamation and other offenses. The case named three Greenpeace entities as defendants, two in the United States and its international umbrella organization.


KUSNETZ: So $660 million is a lot of money, of course, and I’m wondering if you can put that figure in context for readers and tell us what the verdict means for Greenpeace USA and its operations?

RAMAN: It is a very large amount of money for most organizations and individuals, as you can imagine. It’s a fairly small amount of money for Energy Transfer. And the reality is that this case is not really about the money, even though it’s a very large amount. It’s really about the desire to send a message that a powerful company can silence a large environmental organization, and send a message to other organizations, not just environmental groups, other types of groups that are trying to hold power to account, that we will use these tools, strategic litigation against public participation, or SLAPPs, to intimidate you, or silence you, or perhaps even bankrupt you.

KUSNETZ: To press on this again, is this the kind of figure that could bankrupt Greenpeace if it does have to pay?

RAMAN: Well, we are definitely going to appeal. So we’re not at the stage of having to pay. We are going to appeal this, and we are confident in our case and in the facts. So this is the next chapter in this journey, if you will. Yes, but this is a number that far exceeds our annual budget by many times.

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Today, locating the hottest parts of cities with precision is critical for guiding efforts to contend with heat’s dangerous effects. As climate change brings more intense, frequent and longer-lasting heat waves, heat-related illnesses and deaths also climb. High-resolution maps can alert officials to spots facing the greatest risks, so they can plan. It’s especially important when heat risk overlaps with poverty, where communities may have less access to air conditioning and fewer ways to stay cool.

Maps pieced together by the sensors “will help us be able to target, down to the street level, where we can plant more trees to help people better endure the hotter days of summer,” says Brian Beffort, sustainability manager for Washoe County, home to the Reno-Sparks metro area. The maps will also guide where to focus efforts to weatherize buildings so they require less energy to cool.

Campaigns to record temperatures across city neighborhoods and create better heat maps are on the rise. Reno is one of more than 80 U.S. communities that since 2017 have completed a heat mapping project with the aid of citizen scientists, efforts overseen by the National Oceanic and Atmospheric Administration. NOAA has also supported a few international mapping efforts in cities such as Nairobi, Kenya, and Salvador, Brazil.

Local officials are using the data to plan how to adapt to, and fend off, rising urban temperatures. Some have begun to plant trees, install reflective materials and take other measures to cool the hot spots.

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2024 climate trends should be a "wake-up call that we are increasing the risks to our lives, economies and to the planet,” said Celeste Saulo

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cross-posted from: https://beehaw.org/post/18824856

Climate warming is increasing ocean stratification, which in turn should decrease the nutrient flux to the upper ocean. This may slow marine primary productivity, causing cascading effects throughout food webs. However, observing changes in upper ocean nutrients is challenging because surface concentrations are often below detection limits. We show that the nutricline depth, where nutrient concentrations reach well-detected levels, is tied to productivity and upper ocean nutrient availability. Next, we quantify nutricline depths from a global database of observed vertical nitrate and phosphate profiles to assess contemporary trends in global nutrient availability (1972–2022). We find strong evidence that the P-nutricline (phosphacline) is mostly deepening, especially throughout the southern hemisphere, but the N-nutricline (nitracline) remains mostly stable. Earth System Model (ESM) simulations support the hypothesis that reduced iron stress and increased nitrogen fixation buffer the nitracline, but not phosphacline, against increasing stratification. These contemporary trends are expected to continue in the coming decades, leading to increasing phosphorus but not nitrogen stress for marine phytoplankton, with important ramifications for ocean biogeochemistry and food web dynamics.

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Smoke Billows From Bushfires in Tasmania (earthobservatory.nasa.gov)
submitted 3 weeks ago by melp to c/environment
 
 

In early February 2025, bushfires ignited in northwestern Tasmania, where they have continued to burn on the island for more than a week amid windy, warm, and dry conditions.

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Fires Rage in Patagonia (earthobservatory.nasa.gov)
submitted 3 weeks ago by melp to c/environment
 
 

In February 2025, multiple fires raged along the eastern slopes of the Andes Mountains in Patagonia. The fires had burned about 30,000 hectares (115 square miles) of forest in south-central Argentina by February 11, forcing hundreds of people to evacuate their homes, according to news reports.

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New York state is one step closer to banning fossil fuels in new buildings.

On Friday, the State Fire Prevention and Building Code Council voted to recommend major updates to the state’s building code, which is updated every five years and sets minimum standards for construction statewide. The draft updates include rules requiring most new buildings to be all electric starting in 2026, as mandated by a law passed two years ago.

The vote came after the code council went missing in action for more than two months, leaving some advocates nervous that the state might be wavering on the gas ban. With the rules now entering the final stage of the approval process, New York remains on track to be the first state to enact such a ban.

The new draft code also tightens a slew of other standards in a bid to make buildings more energy efficient and save residents money over the long term. But it leaves out several key provisions recommended in the state’s climate plan — possibly running afoul of a 2022 law.

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A new study finds that even as mariculture expands globally, the industry could actually decrease its current biodiversity impact by 30%—if they get smarter about where they farm. But the same study also cautions that seafood farming in the wrong locations could just as easily ramp up current marine biodiversity impacts by over 400%.

One-fifth of the fish we consume is provided by farmed seafood, and that figure is only projected to rise as global demand for protein grows. The new research, published in Nature Ecology & Evolution, calculated that mariculture—the controlled production of shellfish, bivalves, and finfish in coastal areas and in the open ocean—will need to increase by 40.5% from 108,729 hectares to 152,785, to meet this growing demand by 2050.


Under a worst-case future scenario, where mariculture expansion occurred only in biodiversity-rich regions such as these, the effects could be profound: the cumulative biodiversity impact of seafood farming would increase by an average 270% at the country level, and by 420.5% at a global scale, compared to current impacts. Species-wise, the worst affected by mariculture under this extreme scenario would be large marine mammals including whales and seals, because these animals have considerable ranges that would overlap with more open-ocean farms.

But just as there’s a worst-case scenario, the researchers also posit a best-case scenario—one we could achieve, they say, if we take a more strategic approach.

“The best case scenario refers to all mariculture farms in 2050 [being] placed in sea areas with low [impact], including relocating existing farms and the new farms,” says Deqiang Ma, postdoctoral researcher at the University of Michigan School for Environment and Sustainability, and lead author in the new study. The model showed that if farms of the future were almost exclusively sited away from biodiversity hubs, the cumulative effects of mariculture would be on average 27.5% lower at the country level compared to 2020. Taken at the global scale, that equaled an impact reduction of 30.5%. Under this best-case future scenario, almost all marine species considered in the study would experience lower impacts compared to the current-day harms of seafood farms.

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Surely this has nothing to do with climate change.

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Begun, the water wars have.

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The city of Alto Hospicio, in Chile’s Atacama Desert, is one of the driest places on Earth. And yet its population of 140,000 continues to balloon, putting mounting pressure on nearby aquifers that haven’t been recharged by rain in 10,000 years. But Alto Hospicio, like so many other coastal cities, is rich in an untapped water resource: fog.

New research finds that by deploying fog collectors — fine mesh stretched between two poles — in the mountains around Alto Hospicio, the city could harvest an average of 2.5 liters of water per square meter of netting each day. Large fog collectors cost between $1,000 and $4,500 and measure 40 square meters, so just one placed near Alto Hospicio could grab 36,500 liters of water a year without using any electricity, according to a paper published on Thursday in the journal Frontiers in Environmental Science.

By placing the collectors above town — where the altitude is ideal for exploiting the region’s predictable band of fog — water would flow downhill in pipelines by the power of gravity. So that initial investment for collectors would keep paying liquid dividends year after year. “If you’re pumping water from the underground, you will need a lot of energy,” said Virginia Carter Gamberini, a geographer and assistant professor at Chile’s Universidad Mayor and co-lead author of the paper. “From that perspective, it’s a very cheap technology.”

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