Published

5 months ago

March 12, 2025

Alice Rush

We handpick and explain the most important stories at the intersection of climate, land, food and nature over the past fortnight.

This is an online version of Carbon Brief’s fortnightly Cropped email newsletter. Subscribe for free here.

Key developments

Trump’s logging orders

IF A TREE FALLS: US president Donald Trump last week signed a pair of executive orders “to increase lumber production across national forests and other public lands”, Axios reported. The outlet explained that the first order “calls for considering new categorical exclusions” under the existing law that requires environmental reviews, while the second “promotes domestic timber production to replace imports”. The latter order dealt “a devastating blow” to forests on public lands, said Inside Climate News. The outlet added that “increasing timber production would likely target the larger, older trees that are the most critical to protect as climate change accelerates”.

QUESTIONABLE IMPACT: The Trump administration claims that increasing timber production will be “the next frontier in job creation and wildfire prevention”, USA Today reported. Timber groups and lawmakers representing rural districts were in agreement, the outlet said. It added: “But conservation groups and forestry experts say cutting down more trees doesn’t inherently reduce wildfire risk and can actually increase it.” The orders are “expected to face legal pushback”, USA Today said.

NOT SO CLEAR CUT: Despite the claims of a viral Instagram post, the executive orders do not compel the clearing of 280m acres (1.1m square kilometres) of national forest, noted a Yahoo News factcheck. The outlet added that the total area of land affected by the orders is actually 251m acres (1m km2) and that “even in the most extreme scenario, the US logging industry wouldn’t have the sawmills or workers required” to clear-cut that much forest in the next four years. It said: “But whatever the scale, environmentalists warn that expanding logging while reducing oversight will damage fragile ecosystems, threaten old-growth forests, increase pollution and even worsen wildfires.”

Tit-for-tat tariffs

FOOD FIGHT: On Monday, China began imposing tariffs on US farm products, in what the New York Times called “the latest escalation of a trade fight between the world’s two largest economies”. China’s tariffs include a 15% levy on US-raised chicken, wheat and corn, along with a 10% levy on other food products, the newspaper reported. Describing the food tariffs as “a high impact yet low-cost weapon” in the US-China trade war, Bloomberg noted that “the Asian giant remains a key export market for largely Republican states in the midwest farm belt”. Alongside the new levy, it added that China also halted all American timber purchases and soybean imports from three US firms. The Washington Post mapped where tariffs could “hit” US farmers and jobs “the hardest”.

AG INDEPENDENCE: The latest move is part of China’s “broader strategy” to strengthen its food security since Trump’s first term, reported Business Standard, tracing a timeline of the country’s initiatives “to reduce its reliance on US imports”. US farmers and experts who spoke to Time magazine said they “know from experience” that Trump’s “incipient trade war will make things tougher” for them. The outlet added that “around 80% of the money the US government took in from tariffs on Chinese imports [during Trump’s first term] went back to paying farmers” affected by retaliatory tariffs. The US-China food trade fight will give Brazilian exporters “an opportunity to take an even bigger share of the Chinese market”, Reuters reported, adding that it “could also fuel already-high food inflation in Brazil”.

UH OH, CANADA: At the same time, China “open[ed] a new front in a trade war”, announcing tariffs on over $2.6bn worth of Canadian agricultural and food products on Saturday, according to Reuters. The measures include a 100% tariff on Canadian rapeseed oil and pea imports, the newswire explained. It said that China’s tariffs on Canada are being seen as a “warning shot” and “retaliati[on] against levies Ottawa introduced in October” on China-made electric vehicles and aluminium products. Canada’s 40,000 rapeseed farmers are now “caught in the middle of political tensions far outside [their] control” amid two trade fights, the Globe and Mail reported, with China’s moves combining with the “threat of 25% tariffs on $7.7bn of exports to the US, their largest market”.

Spotlight

Mining drives ‘destruction’ in Peru’s peatlands

This week, Carbon Brief covers a new study that found that small-scale, artisanal gold mining in the Peruvian Amazon is a small but growing cause of “destruction” for the region’s carbon-rich peatlands.

Peatland loss due to small-scale gold mining in the Peruvian Amazon has released up to 0.7m tonnes of carbon – some 2.6m tonnes of carbon dioxide (CO2) – over the past 35 years, according to new research.

The study, published in Environmental Research Letters, used satellite imagery to determine where “artisanal” mining had driven deforestation in the Madre de Dios river plain.

The researchers found that while only 5% of the mined area overlapped with known peatlands, 55% of this peatland loss occurred within just the past two years.

They warned that mining in Peru’s peatlands is “happening at a scale sufficiently large to threaten the future existence of peatland on the Madre de Dios landscape”.

Mining-driven deforestation

Peatlands are carbon-rich, water-logged ecosystems that form slowly over time as plant matter dies and partially decomposes.

Although they make up only 3% of the Earth’s land surface, peatlands are estimated to contain 600bn tonnes of carbon – more than is stored in all of the world’s forests combined.

Despite their importance as carbon stores, peatlands are underprotected compared to other “high-value” ecosystems, such as tropical forests. A recent study found that just 17% of peatlands are protected globally.

Artisanal gold mining – referring to mining done informally and with basic tools – is one of the main drivers of deforestation in the Peruvian Amazon in recent decades. It is highly concentrated around the Madre de Dios river, which cuts through the south-eastern part of the country.

To understand the impact of this type of mining, the researchers used 35 years of data from NASA’s Landsat satellite to monitor changes in the region around the Madre de Dios river known as its alluvial plain. They then used an algorithm to differentiate deforestation that was caused by artisanal mining from deforestation due to other factors.

The researchers identified 11,356 hectares of mining in the alluvial plain, two-thirds of which was concentrated in a 50-kilometre stretch of river.

Peatland loss

The researchers then overlaid the identified mining sites with maps of the Madre de Dios peatland complex.

They identified more than 550 hectares of peatland that had been lost to artisanal mining between 1985 and 2023. They estimated that this “destruction” released between 0.2m and 0.7m tonnes of carbon into the atmosphere, resulting in emissions of up to 2.6MtCO2.

Moreover, mining in peatland areas has increased twice as quickly as the average rate of increase across the plain as a whole over the past five years. More than 10,000 hectares of peatland, containing between 3.5 and 14.5m tonnes of carbon, are at “imminent risk”, the authors warn.

Dr John Householder, a researcher at Germany’s Karlsruhe Institute of Technology and an author of the study, said in a statement:

“Even within a human generation, it is quite possible that large peat deposits can disappear from the landscape, before science has had a chance to describe them. For those peat deposits that are already known, these research findings are a wakeup call to protect them.”

News and views

IWATE ABLAZE: Japan was faced with its “worst wildfire in half a century” in early March, Agence France-Presse reported. The fire, which broke out in the Iwate prefecture on the country’s Pacific coast, “engulfed around 2,600 hectares” and “left one dead”, the newswire said. The Japan Times noted that “unusually dry weather, strong winds and the city’s terrain have made the situation worse than usual”. Dr Akira Kato, a forestry professor at Japan’s Chiba University, told the outlet: “There is a big misconception that fires don’t occur in humid climates, but this is actually not true, and forest fires can occur anywhere in the world.”

EXTINCTION LITIGATION: Australia’s environment minister, Tanya Pilbersek, is being sued by conservation non-profit the Wilderness Society for failing in “her promise to halt Australia’s ongoing extinction crisis”, the Sydney Morning Herald reported. The case does not mention Pilbersek by name but alleges “successive environment ministers are to blame” for failing to “implement plans to save endangered animals”, the newspaper said. Pilbersek, it added, has responded by saying “she had made double the number of [nature] recovery plans than her predecessor”. Separately, ABC News reported that Tasmania’s salmon industry is being hit by mass die-offs due to bacterial disease, with “chunks” of thousands of dead salmon washing up ashore.

ARMY OF ME: After the “worst drought in decades”, Context News reported that Zimbabwe’s maize farmers are now battling an infestation of the fall armyworm. The pests are “[n]ative to the Americas” but have “spread across almost all of sub-Saharan Africa” in just two years, according to the UN Food and Agriculture Organization (FAO). The outlet quotes Patrice Talla of the FAO saying: “Climate change has contributed to outbreaks of migratory pests beyond their regions of origin, notably the fall armyworm.” According to the story, the armyworm “reduces maize yields by up to 73% and inflicts annual economic losses valued at $9.4bn in Africa alone”, its “crop-munching” impacts also affecting Malawi, Zambia, Togo, Benin and Swaziland.

SUDANESE BREW: Excelsea coffee – discovered in South Sudan nearly a century ago – is drawing international interest “amid a global coffee crisis caused mainly by climate change”, the Associated Press reported. The coffee variety currently accounts for “less than 1% of the global market” but production trials by agroforestry company Equatoria Teak indicate that it can “thrive in extreme conditions, such as drought and heat, where other coffees cannot”, according to the newswire. While the beans “represent a chance at a better future” for the country, farmer Elia Box – who lost half his coffee crop to fire in early February – told AP that long-term crops, such as coffee, need stability: “Coffee needs peace.”

ESTATE SALE: A “mystery donor” made a record land purchase in the Scottish Highlands on behalf of the Scottish Wildlife Trust – “the largest donation in the trust’s 60-year history”, according to the Times. It quoted the charity saying that by securing the 7,618-hectare Inverbroom Estate, it could “significantly enhance its efforts to protect and restore wildlife at scale across Scotland”. Furthermore, the newspaper noted that “the trust has made a commitment to the donor that none of the work at Inverbroom would be funded through the sale of carbon credits”.

ILLEGALLY FELLED: According to a new report covered by Mongabay, nearly all of the deforestation in the Brazilian Amazon in the past year was illegal. It said Brazilian non-profit Center of Life Institute (ICV) found that 91% of deforestation in the Amazon and 51% in the tropical savanna of the Cerrado lacked authorisation between August 2023 and July 2024. The outlet noted that under Brazilian law, landowners with a government-issued permit can clear up to 20% and 80% of the vegetation on their property in the Amazon rainforest and Cerrado, respectively. However, it added that the ICV researchers found that much of the deforestation captured by Brazil’s national space agency “wasn’t registered in official databases” for deforestation permits. Separately, BBC News reported that a new highway being built for the COP30 UN climate talks in Belém is “cutting through tens of thousands of acres” of protected Amazon rainforest.

Watch, read, listen

FOREST FOR THE TREES: Dialogue Earth explained how extreme heat is affecting China’s trees – and magnifying other threats to the plants.

IN BLOOM: An in-depth piece in the New York Times covered how a warming ocean is “throwing plankton into disarray”, putting the entire marine food web at risk.

RADICAL INTELLIGENCE: A Noema long read looked at how studying intelligence as a biological property across species can “open up a world of commonalities” across all life.

EXTRACTIVE INVESTORS: The Guardian examined the investor-state lawsuit levelled against Greenland that is seeking to reverse its uranium mining ban.

New science

Research published in PLOS Climate found that smallholder farmers in north-eastern Madagascar reported that they perceived increased temperature and decreased rainfall over the past five years. However, despite reporting concerns over their ability to feed their families in the future, only 21% of the 479 farmers surveyed reported changing their farming practices.
Tropical forests in the Americas are changing certain functional traits, such as wood density, in response to warming temperatures – “but at a rate that is fundamentally insufficient to track climate change”, a new study published in Science found. Researchers used data from 415 forest plots over 1980-2021, along with temperature data, to determine how forest composition was changing in response to warming.
A new review in Environmental Research Letters scanned nearly 10,000 scientific papers to identify the impacts of trees outside of forests on human well-being in South Asia. While most of the literature reported an increase in economic and material well-being, negative outcomes documented included a loss of agency, political voice and social equity – “in particular with afforestation and monoculture plantation projects”.

In the diary

17-18 March: First part of the 30th annual session of the International Seabed Authority | Kingston, Jamaica
21 March: International Day of Forests
22 March: World Water Day
29 March: Global Day of the Landless

Cropped is researched and written by Dr Giuliana Viglione, Aruna Chandrasekhar, Daisy Dunne, Orla Dwyer and Yanine Quiroz. Please send tips and feedback to cropped@carbonbrief.org

The post Cropped 12 March 2025: Trump and timber; Food fights; Peru’s peatlands appeared first on Carbon Brief.

Cropped 12 March 2025: Trump and timber; Food fights; Peru’s peatlands

Greenhouse Gases

DeBriefed 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report

Published

4 days ago

August 15, 2025

Alice Rush

Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.

This week

Blazing heat hits Europe

FANNING THE FLAMES: Wildfires “fanned by a heatwave and strong winds” caused havoc across southern Europe, Reuters reported. It added: “Fire has affected nearly 440,000 hectares (1,700 square miles) in the eurozone so far in 2025, double the average for the same period of the year since 2006.” Extreme heat is “breaking temperature records across Europe”, the Guardian said, with several countries reporting readings of around 40C.

HUMAN TOLL: At least three people have died in the wildfires erupting across Spain, Turkey and Albania, France24 said, adding that the fires have “displaced thousands in Greece and Albania”. Le Monde reported that a child in Italy “died of heatstroke”, while thousands were evacuated from Spain and firefighters “battled three large wildfires” in Portugal.

UK WILDFIRE RISK: The UK saw temperatures as high as 33.4C this week as England “entered its fourth heatwave”, BBC News said. The high heat is causing “nationally significant” water shortfalls, it added, “hitting farms, damaging wildlife and increasing wildfires”. The Daily Mirror noted that these conditions “could last until mid-autumn”. Scientists warn the UK faces possible “firewaves” due to climate change, BBC News also reported.

Around the world

GRID PRESSURES: Iraq suffered a “near nationwide blackout” as elevated power demand – due to extreme temperatures of around 50C – triggered a transmission line failure, Bloomberg reported.
‘DIRE’ DOWN UNDER: The Australian government is keeping a climate risk assessment that contains “dire” implications for the continent “under wraps”, the Australian Financial Review said.
EXTREME RAINFALL: Mexico City is “seeing one of its heaviest rainy seasons in years”, the Washington Post said. Downpours in the Japanese island of Kyushu “caused flooding and mudslides”, according to Politico. In Kashmir, flash floods killed 56 and left “scores missing”, the Associated Press said.
SOUTH-SOUTH COOPERATION: China and Brazil agreed to “ensure the success” of COP30 in a recent phone call, Chinese state news agency Xinhua reported.
PLASTIC ‘DEADLOCK’: Talks on a plastic pollution treaty have failed again at a summit in Geneva, according to the Guardian, with countries “deadlocked” on whether it should include “curbs on production and toxic chemicals”.

15

The number of times by which the most ethnically-diverse areas in England are more likely to experience extreme heat than its “least diverse” areas, according to new analysis by Carbon Brief.

Latest climate research

As many as 13 minerals critical for low-carbon energy may face shortages under 2C pathways | Nature Climate Change
A “scoping review” examined the impact of climate change on poor sexual and reproductive health and rights in sub-Saharan Africa | PLOS One
A UK university cut the carbon footprint of its weekly canteen menu by 31% “without students noticing” | Nature Food

(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)

Captured

Factchecking Trump’s climate report

A report commissioned by the US government to justify rolling back climate regulations contains “at least 100 false or misleading statements”, according to a Carbon Brief factcheck involving dozens of leading climate scientists. The report, compiled in two months by five hand-picked researchers, inaccurately claims that “CO2-induced warming might be less damaging economically than commonly believed” and misleadingly states that “excessively aggressive [emissions] mitigation policies could prove more detrimental than beneficial”80

Spotlight

Does Xi Jinping care about climate change?

This week, Carbon Brief unpacks new research on Chinese president Xi Jinping’s policy priorities.

On this day in 2005, Xi Jinping, a local official in eastern China, made an unplanned speech when touring a small village – a rare occurrence in China’s highly-choreographed political culture.

In it, he observed that “lucid waters and lush mountains are mountains of silver and gold” – that is, the environment cannot be sacrificed for the sake of growth.

(The full text of the speech is not available, although Xi discussed the concept in a brief newspaper column – see below – a few days later.)

In a time where most government officials were laser-focused on delivering economic growth, this message was highly unusual.

Forward-thinking on environment

As a local official in the early 2000s, Xi endorsed the concept of “green GDP”, which integrates the value of natural resources and the environment into GDP calculations.

He also penned a regular newspaper column, 22 of which discussed environmental protection – although “climate change” was never mentioned.

This focus carried over to China’s national agenda when Xi became president.

New research from the Asia Society Policy Institute tracked policies in which Xi is reported by state media to have “personally” taken action.

It found that environmental protection is one of six topics in which he is often said to have directly steered policymaking.

Such policies include guidelines to build a “Beautiful China”, the creation of an environmental protection inspection team and the “three-north shelterbelt” afforestation programme.

“It’s important to know what Xi’s priorities are because the top leader wields outsized influence in the Chinese political system,” Neil Thomas, Asia Society Policy Institute fellow and report co-author, told Carbon Brief.

Local policymakers are “more likely” to invest resources in addressing policies they know have Xi’s attention, to increase their chances for promotion, he added.

What about climate and energy?

However, the research noted, climate and energy policies have not been publicised as bearing Xi’s personal touch.

“I think Xi prioritises environmental protection more than climate change because reducing pollution is an issue of social stability,” Thomas said, noting that “smoggy skies and polluted rivers” were more visible and more likely to trigger civil society pushback than gradual temperature increases.

The paper also said topics might not be linked to Xi personally when they are “too technical” or “politically sensitive”.

For example, Xi’s landmark decision for China to achieve carbon neutrality by 2060 is widely reported as having only been made after climate modelling – facilitated by former climate envoy Xie Zhenhua – showed that this goal was achievable.

Prior to this, Xi had never spoken publicly about carbon neutrality.

Prof Alex Wang, a University of California, Los Angeles professor of law not involved in the research, noted that emphasising Xi’s personal attention may signal “top” political priorities, but not necessarily Xi’s “personal interests”.

By not emphasising climate, he said, Xi may be trying to avoid “pushing the system to overprioritise climate to the exclusion of the other priorities”.

There are other ways to know where climate ranks on the policy agenda, Thomas noted:

“Climate watchers should look at what Xi says, what Xi does and what policies Xi authorises in the name of the ‘central committee’. Is Xi talking more about climate? Is Xi establishing institutions and convening meetings that focus on climate? Is climate becoming a more prominent theme in top-level documents?”

Watch, read, listen

TRUMP EFFECT: The Columbia Energy Exchange podcast examined how pressure from US tariffs could affect India’s clean energy transition.

NAMIBIAN ‘DESTRUCTION’: The National Observer investigated the failure to address “human rights abuses and environmental destruction” claims against a Canadian oil company in Namibia.

‘RED AI’: The Network for the Digital Economy and the Environment studied the state of current research on “Red AI”, or the “negative environmental implications of AI”.

Coming up

17 August: Bolivian general elections
18-29 August: Preparatory talks on the entry into force of the “High Seas Treaty”, New York
18-22 August: Y20 Summit, Johannesburg
21 August: Advancing the “Africa clean air programme” through Africa-Asia collaboration, Yokohama

Pick of the jobs

Lancaster Environment Centre, senior research associate: JUST Centre | Salary: £39,355-£45,413. Location: Lancaster, UK
Environmental Justice Foundation, communications and media officer, Francophone Africa | Salary: XOF600,000-XOF800,000. Location: Dakar, Senegal
Politico, energy & climate editor | Salary: Unknown. Location: Brussels, Belgium
EnviroCatalysts, meteorologist | Salary: Unknown. Location: New Delhi, India

DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.

This is an online version of Carbon Brief’s weekly DeBriefed email newsletter. Subscribe for free here.

The post DeBriefed 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report appeared first on Carbon Brief.

DeBriefed 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report

Greenhouse Gases

Cropped 13 August 2025: Fossil-fuelled bird decline; ‘Deadly’ wildfires; Empty nature fund

Published

6 days ago

August 13, 2025

Alice Rush

We handpick and explain the most important stories at the intersection of climate, land, food and nature over the past fortnight.

This is an online version of Carbon Brief’s fortnightly Cropped email newsletter. Subscribe for free here.

Key developments

‘Deadly’ wildfires

WINE BRAKE: France experienced its “largest wildfire in decades”, which scorched more than 16,000 hectares in the country’s southern Aude region, the Associated Press said. “Gusting winds” fanned the flames, Reuters reported, but local winemakers and mayors also “blam[ed] the loss of vineyards”, which can act as a “natural, moisture-filled brake against wildfires”, for the fire’s rapid spread. It added that thousands of hectares of vineyards were removed in Aude over the past year. Meanwhile, thousands of people were evacuated from “deadly” wildfires in Spain, the Guardian said, with blazes ongoing in other parts of Europe.

MAJOR FIRES: Canada is experiencing its second-worst wildfire season on record, CBC News reported. More than 7.3m hectares burned in 2025, “more than double the 10-year average for this time of year”, the broadcaster said. The past three fire seasons were “among the 10 worst on record”, CBC News added. Dr Mike Flannigan from Thompson Rivers University told the Guardian: “This is our new reality…The warmer it gets, the more fires we see.” Elsewhere, the UK is experiencing a record year for wildfires, with more than 40,000 hectares of land burned so far in 2025, according to Carbon Brief.

Sign up to Carbon Brief’s free “Cropped” email newsletter. A fortnightly digest of food, land and nature news and views. Sent to your inbox every other Wednesday.

WESTERN US: The US state of Colorado has recorded one of its largest wildfires in history in recent days, the Guardian said. The fire “charred” more than 43,300 hectares of land and led to the temporary evacuation of 179 inmates from a prison, the newspaper said. In California, a fire broke out “during a heatwave” and burned more than 2,000 hectares before it was contained, the Los Angeles Times reported. BBC News noted: “Wildfires have become more frequent in California, with experts citing climate change as a key factor. Hotter, drier conditions have made fire seasons longer and more destructive.”

FIRE FUNDING: “Worsening fires” in the Brazilian Amazon threaten new rainforest funding proposals due to be announced at the COP30 climate summit later this year, experts told Climate Home News. The new initiatives include the Tropical Forests Forever Facility, which the outlet said “aims to generate a flow of international investment to pay countries annually in proportion to their preserved tropical forests”. The outlet added: “If fires in the Amazon continue to worsen in the years to come, eligibility for funding could be jeopardised, Brazil’s environment ministry acknowledged.”

Farming impacts

OUT OF ORBIT: US president Donald Trump moved to “shut down” two space missions which monitor carbon dioxide and plant health, the Associated Press reported. Ending these NASA missions would “potentially shu[t] off an important source of data for scientists, policymakers and farmers”, the outlet said. Dr David Crisp, a retired NASA scientist, said the missions can detect the “glow” of plant growth, which the outlet noted “helps monitor drought and predict food shortages that can lead to civil unrest and famine”.

FARM EXTREMES: Elsewhere, Reuters said that some farmers are considering “abandoning” a “drought-hit” agricultural area in Hungary as “climate change cuts crop yields and reduces groundwater levels”. Scientists warned that rising temperatures and low rainfall threaten the region’s “agricultural viability”, the newswire added. Meanwhile, the Premium Times in Nigeria said that some farmers are “harvest[ing] crops prematurely” due to flooding fears. A community in the south-eastern state of Imo “has endured recurrent floods, which wash away crops and incomes alike” over the past decade, the newspaper noted.

SECURITY RISKS: Food supply chains in the UK face “escalating threats from climate impacts and the migration they are triggering”, according to a report covered by Business Green. The outlet said that £3bn worth of UK food imports originated from the 20 countries “with the highest numbers of climate-driven displacements” in 2024, based on analysis from the Energy and Climate Intelligence Unit. The analysis highlighted that “climate impacts on food imports pose a threat to UK food security”. Elsewhere, an opinion piece in Dialogue Earth explored how the “role of gender equity in food security remains critically unaddressed”.

Spotlight

Fossil-fuelled bird decline

This week, Carbon Brief covers a new study tracing the impact of fossil-fuelled climate change on tropical birds.

Over the past few years, biologists have recorded sharp declines in bird numbers across tropical rainforests – even in areas untouched by humans – with the cause remaining a mystery.

A new study published this week in Nature Ecology and Evolution could help to shed light on this alarming phenomenon.

The research combined ecological and climate attribution techniques for the first time to trace the fingerprint of fossil-fuelled climate change on declining bird populations.

It found that an increase in heat extremes driven by climate change has caused tropical bird populations to decline by 25-38% in the period 1950-2020, when compared to a world without warming.

In their paper, the authors noted that birds in the tropics could be living close to their “thermal limits”.

Study lead author Dr Maximilian Kotz, a climate scientist at the Barcelona Supercomputing Center in Spain, explained to Carbon Brief:

“High temperature extremes can induce direct mortality in bird populations due to hyperthermia and dehydration. Even when they don’t [kill birds immediately], there’s evidence that this can then affect body condition which, in turn, affects breeding behaviour and success.”

Conservation implications

The findings have “potential ramifications” for commonly proposed conservation strategies, such as increasing the amount of land in the tropics that is protected for nature, the authors said. In their paper, they continued:

“While we do not disagree that these strategies are necessary for abating tropical habitat loss…our research shows there is now an additional urgent need to investigate strategies that can allow for the persistence of tropical species that are vulnerable to heat extremes.”

In some parts of the world, scientists and conservationists are looking into how to protect wildlife from more intense and frequent climate extremes, Kotz said.

He referenced one project in Australia which is working to protect threatened wildlife following periods of extreme heat, drought and bushfires.

Prof Alex Pigot, a biodiversity scientist at University College London (UCL), who was not involved in the research, said the findings reinforced the need to systematically monitor the impact of extreme weather on wildlife. He told Carbon Brief:

“We urgently need to develop early warning systems to be able to anticipate in advance where and when extreme heatwaves and droughts are likely to impact populations – and also rapidly scale up our monitoring of species and ecosystems so that we can reliably detect these effects.”

There is further coverage of this research on Carbon Brief’s website.

News and views

EMPTY CALI FUND: A major voluntary fund for biodiversity remains empty more than five months after its launch, Carbon Brief revealed. The Cali Fund, agreed at the COP16 biodiversity negotiations last year, was set up for companies who rely on nature’s resources to share some of their earnings with the countries where many of these resources originate. Big pharmaceutical companies did not take up on opportunities to commit to contributing to the fund or be involved in its launch in February 2025, emails released to Carbon Brief showed. Just one US biotechnology firm has pledged to contribute to the fund in the future.

LOSING HOPE: Western Australia’s Ningaloo reef – long considered a “hope spot” among the country’s coral reefs for evading major bleaching events – is facing its “worst-ever coral bleaching”, Australia’s ABC News reported. The ocean around Ningaloo has been “abnormally” warm since December, resulting in “unprecedented” bleaching and mortality, a research scientist told the outlet. According to marine ecologist Dr Damian Thomson, “up to 50% of the examined coral was dead in May”, the Sydney Morning Herald said. Thomson told the newspaper: “You realise your children are probably never going to see Ningaloo the way you saw it.”

‘DEVASTATION BILL’: Brazil’s president, Luiz Inácio Lula da Silva, signed a “contentious” environmental bill into law, but “partially vetoed” some of the widely criticised elements, the Financial Times reported. Critics, who dubbed it the “devastation bill”, said it “risked fuelling deforestation and would harm Brazil’s ecological credentials” just months before hosting the COP30 climate summit. The newspaper said: “The leftist leader struck down or altered 63 of 400 provisions in the legislation, which was designed to speed up and modernise environmental licensing for new business and infrastructure developments.” The vetoes need to be approved by congress, “where Lula lacks a majority”, the newspaper noted.

RAINFOREST DRILLING: The EU has advised the Democratic Republic of the Congo (DRC) against allowing oil drilling in a vast stretch of rainforest and peatland that was jointly designated a “green corridor” earlier this year, Climate Home News reported. In May, the DRC announced that it planned to open the conservation area for drilling, the publication said. A spokesperson for the European Commission told Climate Home News that the bloc “fully acknowledges and respects the DRC’s sovereign right to utilise its diverse resources for economic development”, but that it “highlights the fact that green alternatives have facilitated the protection of certain areas”.

NEW PLAN FOR WETLANDS: During the 15th meeting of the Ramsar Convention on Wetlands, held in Zimbabwe from 23 to 31 July, countries agreed on the adoption of a new 10-year strategic plan for conserving and sustainably using the world’s wetlands. Down to Earth reported that 13 resolutions were adopted, including “enhancing monitoring and reporting, capacity building and mobilisation of resources”. During the talks, Zimbabwe’s environment minister announced plans to restore 250,000 hectares of degraded wetlands by 2030 and Saudi Arabia entered the Convention on Wetlands. Panamá will host the next COP on wetlands in July 2028.

MEAT MADNESS: DeSmog covered the details of a 2021 public relations document that revealed how the meat industry is trying to “make beef seem climate-friendly”. The industry “may have enlisted environmental groups to persuade people to ‘feel better’ about eating beef”, the outlet said, based on this document. The strategy was created by a communications agency, MHP Group, and addressed to the Global Roundtable for Sustainable Beef. One of the key messages of the plan was to communicate the “growing momentum in the beef industry to protect and nurture the Earth’s natural resources”. MHP Group did not respond to a request for comment, according to DeSmog.

Watch, read, listen

MAKING WAVES: A livestream of deep-sea “crustaceans, sponges and sea cucumbers” has “captivated” people in Argentina, the New York Times outlined.

BAFFLING BIRDS: The Times explored the backstory to the tens of thousands of “exotic-looking” parakeets found in parks across Britain.

PLANT-BASED POWER: In the Conversation, Prof Paul Behrens outlined how switching to a plant-based diet could help the UK meet its climate and health targets.

MARINE DISCRIMINATION: Nature spoke to a US-based graduate student who co-founded Minorities in Shark Science about her experiences of racism and sexism in the research field.

New science

Applying biochar – a type of charcoal – to soils each year over a long period of time can have “sustained benefits for crop yield and greenhouse gas mitigation”, according to a Proceedings of the National Academy of Sciences study.
New research, published in PLOS Climate, found that nearly one-third of highly migratory fish species in the US waters of the Atlantic Ocean have “high” or “very high” vulnerability to climate change, but the majority of species have “some level of resilience and adaptability”.
A study in Communications Earth & Environment found a “notable greening trend” in China’s wetlands over 2000-23, with an increasing amount of carbon being stored in the plants growing there.

In the diary

18-29 August: Second meeting of the preparatory commission for the Agreement on Marine Biological Diversity of Areas beyond National Jurisdiction | New York
24-28 August: World Water Week | Online and Stockholm, Sweden
26-29 August: Sixth forum of ministers and environment authorities of Asia Pacific | Nadi, Fiji

Cropped is researched and written by Dr Giuliana Viglione, Aruna Chandrasekhar, Daisy Dunne, Orla Dwyer and Yanine Quiroz. Please send tips and feedback to cropped@carbonbrief.org

The post Cropped 13 August 2025: Fossil-fuelled bird decline; ‘Deadly’ wildfires; Empty nature fund appeared first on Carbon Brief.

Cropped 13 August 2025: Fossil-fuelled bird decline; ‘Deadly’ wildfires; Empty nature fund

Greenhouse Gases

Holding the line on climate: EPA

Published

6 days ago

August 13, 2025

Alice Rush

CCL submits a formal comment on EPA’s proposed endangerment finding rollback

By Dana Nuccitelli, CCL Research Manager

On July 29, the EPA proposed to rescind its 2009 endangerment finding that forms the basis of all federal climate pollution regulations.

Without the endangerment finding, the EPA may not be allowed or able to regulate greenhouse gas pollution from sources like power plants or vehicle tailpipes, as they have done for years. News coverage has framed this as a “radical transformation” and a “bid to scrap almost all pollution regulations,” so it has appropriately alarmed many folks in the climate and environment space.

At CCL, we focus our efforts on working with Congress to implement durable climate policies, and so we don’t normally take actions on issues like this that relate to federal agencies or the courts. Other organizations focus their efforts on those branches of the government and are better equipped to spearhead this type of moment, and we appreciate those allies.

But in this case, we did see an opportunity for CCL’s voice — and our focus on Congress — to play a role here. We decided to submit a formal comment on this EPA action for two reasons.

First, this decision could have an immense impact by eliminating every federal regulation of climate pollutants in a worst case scenario. Second, this move relates to our work because the EPA is misinterpreting the text and intent of laws passed by Congress. Our representatives have done their jobs by passing legislation over the past many decades that supports and further codifies the EPA’s mandate to regulate climate pollution. That includes the Clean Air Act, and more recently, the Inflation Reduction Act. We at CCL wanted to support our members of Congress by making these points in a formal comment.

There has been a tremendous public response to this action. In just over one week, the EPA already received over 44,000 public comments on its decision, and the public comment period will remain open for another five weeks, until September 15.

To understand more about the details and potential outcomes of the EPA’s actions, read my article on the subject at Yale Climate Connections, our discussion on CCL Community, and CCL’s formal comment, which represents our entire organization. As our comment concludes,

“In its justifications for rescinding the 2009 endangerment finding, the Reconsideration has misinterpreted the text of the Clean Air Act, Congress’ decadeslong support for the EPA’s mandate to regulate greenhouse gas emissions from motor vehicles and other major sources, and the vast body of peer-reviewed climate science research that documents the increasingly dangerous threats that those emissions pose to Americans’ health and welfare. Because the bases of these justifications are fundamentally flawed, CCL urges the EPA to withdraw its ill-conceived Reconsideration of the 2009 endangerment finding. The EPA has both the authority and the responsibility to act. Americans cannot afford a retreat from science, law, and common sense in the face of a rapidly accelerating climate crisis.”

After the EPA responds to the public comment record and finalizes its decision, this issue will ultimately be decided by the Supreme Court several years from now.

In the meantime, CCL will continue to focus our efforts on areas where we can make the biggest difference in preserving a livable climate. Right now, that involves contacting our members of Congress to urge them to fully fund key climate and energy programs and protect critical work at the National Oceanic and Atmospheric Administration (NOAA), National Aeronautics and Space Administration (NASA), and Department of Energy. We’ve set an ambitious goal of sending 10,000 messages to our members of Congress, so let’s all do what CCL does best and make our voices heard on this critical issue.

This action by the EPA also reminds us that federal regulations are fragile. They tend to change with each new administration coming into the White House. Legislation passed by Congress – especially when done on a bipartisan basis – is much more durable. That’s why CCL’s work, as one of very few organizations engaging in nonpartisan advocacy for long-lasting climate legislation, is so critical.

That’s especially true right now when we’re seeing the Trump administration slam shut every executive branch door to addressing climate change. We need Congress to step up now more than ever to implement durable solutions like funding key climate and energy programs, negotiating a new bipartisan comprehensive permitting reform bill, implementing healthy forest solutions like the Fix Our Forests Act, and advancing conversations about policies to put a price on carbon pollution. Those are the kinds of effective, durable, bipartisan climate solutions that CCL is uniquely poised to help become law and make a real difference in preserving a livable climate.

For other examples of how CCL is using our grassroots power to help ensure that Congress stays effective on climate in this political landscape, see our full “Holding the Line on Climate” blog series.

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