Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Congress passes Trump’s ‘megabill’
TAX CREDITS CRUSHED: A major budget bill passed by US congress this week is “poised to remake American energy by slashing tax breaks for wind and solar power and electric cars”, reported the New York Times. The legislation, which was “muscled” through by Republicans, “provides a boost to fossil fuels and dismantles many of the biggest actions the federal government has ever taken to fight climate change”, the newspaper said.
‘CRACKDOWN’: The version of the bill approved by the Senate on Tuesday included “compromise language” that gave wind and solar projects one year to begin construction to claim current tax credits, noted Politico. “Hard-line” Republicans in the House of Representatives told the outlet that they backed the bill only after receiving assurances from Donald Trump that he would use executive action to further “constrict” wind and solar.
LAB LIABILITY: The bill, which is expected to be signed by Trump today, also “seeks to defund” multiple climate labs, according to CNN. This includes the Mauno Lao laboratory in Hawaii, where measurements since 1958 have produced the iconic “Keeling Curve” of rising atmospheric CO2, the outlet noted. See below for more on the emissions impact of Trump’s bill.
Record-breaking heatwave ‘grips’ Europe
RED ALERTS: At least eight people died across Europe as a heatwave gripped much of the continent, reported Reuters, “triggering health alerts and forest fires and forcing the closure of a nuclear reactor at a Swiss power plant”. The New York Times quoted UN secretary general António Guterres, who said: “Extreme heat is no longer a rare event – it has become the new normal.”
RECORD-BREAKING: Both Spain and England had their hottest June on record, noted BBC News, with the Spanish weather service saying the average of 23.6C “pulverised records”. The outlet added that France registered its second-hottest June, while the Guardian reported that Portugal hit a provisional record high for June of 46.6C.
FLASH FLOODS: Elsewhere, a record downpour in the central Chinese province of Hubei brought a month’s worth of rain in just 12 hours to the city of Xianfeng, reported Reuters. Authorities moved 18,000 people to safety, the newswire said. Flooding in India’s northern state of Himachal Pradesh left five people dead, reported the Hindustan Times.
Around the world
- ‘WATER[ED] DOWN’: The European Commission’s newly proposed target to cut the EU’s carbon emissions by 90% by 2040 has been criticised for allowing up to 3% of the goal to be met with international carbon credits, reported Carbon Brief.
- BRAZIL OIL BID: Brazil’s COP30 president-designate, André Corrêa do Lago, has “played down concerns” on Brazil’s oil expansion after a new analysis found the nation will drive a surge in new production by 2030, reported the Financial Times.
- ‘REPUTATIONAL RISK’: The nomination of an economist from the Saudi Aramco oil company as a coordinating lead author for an Intergovernmental Panel on Climate Change report has been denounced as “political capture”, reported Politico.
- FLIGHT FEE: A group of countries, including France, Kenya and Barbados, have pledged to tax private jets and premium-class flying in a bid to raise funds for climate action at a summit in Spain, Reuters reported. Climate Home News has all the key climate-finance takeaways from the event.
- ‘MAJOR SETBACK’: A £65m satellite launched last year to detect methane emissions from oil and gas production has been “lost in space”, reported BBC News.
£528m
The amount by which “climate aid” given by the UK government to developing countries was inflated through controversial changes to the way climate finance is now being designated, Carbon Brief analysis showed.
Latest climate research
- Sustained cuts to US military spending could result in annual energy savings by 2032 equivalent to the energy consumption of Slovenia, a study in PLOS Climate found.
- Using satellite data, a study in the Proceedings of the National Academy of Sciences revealed a marked increase in surface salinity across the Southern Ocean since 2015, coinciding with a “dramatic decline” in Antarctic sea ice.
- Research in Nature Cities highlighted the “disproportionate flood exposure” faced by urban slum populations in the global south, with one in three living on a floodplain.
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured

Trump’s dismantling of climate policy means the US will add an extra 7bn tonnes of emissions to the atmosphere from now until 2030, compared to meeting its former climate pledge under the Paris Agreement, according to new Carbon Brief analysis of modelling from Princeton University. The approval of Trump’s megabill repealing clean-energy tax credits, alongside a series of executive orders, means that US emissions are now set to drop to just 3% below current levels by 2030 – effectively flatlining – rather than falling 40% as required to hit the now-defunct target, according to the analysis.
Spotlight
Tipping points that worry scientists the most
This week, delegates at the Global Tipping Points 2025 conference in Exeter tell Carbon Brief which potential tipping “element” in the Earth system they are most worried about.
Prof Tim Lenton, founding director of the Global Systems Institute and chair in climate change and Earth system science at the University of Exeter:
“The Atlantic Meridional Overturning Circulation, or AMOC, for sure. The consequences of crashing that would be devastating globally – and also for where I live in the UK. By our own calculation, we could have less than half the viable area for growing a couple of major staple crops, wheat and maize, worldwide. We would have a widespread water crisis. We could have collapses of the monsoons in West Africa and India that would displace hundreds of millions of people. It is hard to see that in anything other than a catastrophe.”
Prof Ricarda Winkelmann, founding director of the Max Planck Institute of Geoanthropology and professor of climate system analysis at the University of Potsdam:
“So I am thinking about this from a risk perspective – so both the likelihood as well as the impacts – and I think the answer depends on that. Because when it comes to the likelihood and the particular threshold – and we know about those – I’m mostly concerned about the Greenland and the West Antarctic ice sheets. This is because we know that, even at lower warming levels, they’re already at risk of transgressing tipping points in certain regions.
“But when it comes to the impacts and also the timescales over which those play out, there are other tipping elements that worry me most. In particular, regional tipping elements. So, if we think of the mountain glaciers, for instance, these impacts are already experienced right now and several mountain glaciers are undergoing these accelerated changes.”
Prof Gabi Hegerl, chair in climate system science in the school of geosciences at the University of Edinburgh:
“I am worried about all of them. But, for the immediate future, I am particularly worried about tipping points that involve the biosphere and humans due to breaching thresholds for heat or drought that then ripple into food availability, livelihood and ecosystems. The Earth system tipping points will do that, too, but maybe a little bit later. Examples are coral diebacks triggered by marine heatwaves, forest change and fires, and droughts threatening livelihoods and putting people on the move.
“I did a research project on the US dustbowl and the trigger was drought causing vegetation and crop dieback, then [leading to] extreme heat and dust storms in response – and migration, as memorialised in [the 1939 John Steinbeck novel] The Grapes of Wrath. And, now with warming, all droughts get supercharged.”
Prof Carlos Nobre, Brazilian scientist and meteorologist who spearheaded the multi-disciplinary, multinational large-scale biosphere-atmosphere experiment in the Amazon:
“The Amazon is a very serious tipping point, because [dieback] could release around 250bn tonnes of CO2 by 2100 – which will make it impossible to [limit global warming] at 1.5C. We could also lose the largest [host to] biodiversity on the planet, which would induce a tremendous, large number of epidemics and several pandemics. Also, of course, the Amazon forest controls aspects of the global climate. In South America, the climate is entirely controlled by the Amazon forest.”
Carbon Brief will publish further coverage of the Global Tipping Points conference next week.
Watch, read, listen
‘CLIMATE ACTION IS UNSTOPPABLE’: In a talk at the recent TED Countdown Summit 2025 in Nairobi, former US vice-president Al Gore explained why the narrative of “climate realism” is a “myth”.
PROTESTOR IN PRISON: A BBC Radio 4 Currently documentary followed the story of a “law-abiding Middle England mum”, who received a four-year prison sentence for a Just Stop Oil protest on the M25 motorway.
‘FROM THE GREEN TO THE UNSEEN’: In its L is for Labour YouTube show, the Migration Project asked what a “just transition” to electric vehicles would look like for the traditional automotive industry and its workers in India.
Coming up
- 6-7 July: 17th BRICS summit, Rio de Janeiro, Brazil
- 8-11 July: AI For Good global summit 2025, Geneva, Switzerland
- 7-11 July: 47th Meeting of the Open-ended Working Group of the Parties to the Montreal Protocol, Bangkok, Thailand
Pick of the jobs
- Climate Policy Initiative, senior communications associate, climate finance | Salary: Unknown. Location: Cape Town, South Africa
- Global Action Plan, partnerships manager and campaigner | Salary: £36,000 and £36,000-£45,000, respectively. Location: London
- European Bank for Reconstruction and Development, principal manager, nature & climate finance | Salary: Unknown. Location: London
- Cheltenham Borough Council, climate and decarbonisation manager | Salary: £47,227-52,547. Location: Cheltenham, UK
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 4 July 2025: Trump ‘megabill’ guts clean energy; Europe’s record heat; Scientists discuss ‘most worrying’ tipping points appeared first on Carbon Brief.
Climate Change
DeBriefed 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report
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
Climate Change
New York Already Denied Permits to These Gas Pipelines. Under Trump, They Could Get Greenlit
The specter of a “gas-for-wind” compromise between the governor and the White House is drawing the ire of residents as a deadline looms.
Hundreds of New Yorkers rallied against new natural gas pipelines in their state as a deadline loomed for the public to comment on a revived proposal to expand the gas pipeline that supplies downstate New York.
New York Already Denied Permits to These Gas Pipelines. Under Trump, They Could Get Greenlit
Climate Change
Factcheck: Trump’s climate report includes more than 100 false or misleading claims
A “critical assessment” report commissioned by the Trump administration to justify a rollback of US climate regulations contains at least 100 false or misleading statements, according to a Carbon Brief factcheck involving dozens of leading climate scientists.
The report – “A critical review of impacts of greenhouse gas emissions on the US climate” – was published by the US Department of Energy (DoE) on 23 July, just days before the government laid out plans to revoke a scientific finding used as the legal basis for emissions regulation.
The executive summary of the controversial report inaccurately claims that “CO2-induced warming might be less damaging economically than commonly believed”.
It also states misleadingly that “excessively aggressive [emissions] mitigation policies could prove more detrimental than beneficial”.
Compiled in just two months by five “independent” researchers hand-selected by the climate-sceptic US secretary of energy Chris Wright, the document has sparked fierce criticism from climate scientists, who have pointed to factual errors, misrepresentation of research, messy citations and the cherry-picking of data.
Experts have also noted the authors’ track record of promoting views at odds with the mainstream understanding of climate science.
Wright’s department claims the report – which is currently open to public comment as part of a 30-day review – underwent an “internal peer-review period amongst [the] DoE’s scientific research community”.
The report is designed to provide a scientific underpinning to one flank of the Trump administration’s plans to rescind a finding that serves as the legal prerequisite for federal emissions regulation. (The second flank is about legal authority to regulate emissions.)
The “endangerment finding” – enacted by the Obama administration in 2009 – states that six greenhouse gases are contributing to the net-negative impacts of climate change and, thus, put the public in danger.
In a press release on 29 July, the US Environmental Protection Agency said “updated studies and information” set out in the new report would “challenge the assumptions” of the 2009 finding.
Carbon Brief asked a wide range of climate scientists, including those cited in the “critical review” itself, to factcheck the report’s various claims and statements.
The post Factcheck: Trump’s climate report includes more than 100 false or misleading claims appeared first on Carbon Brief.
https://www.carbonbrief.org/factcheck-trumps-climate-report-includes-more-than-100-false-or-misleading-claims/
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