Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This is an online version of Carbon Brief’s weekly DeBriefed email newsletter. Subscribe for free here.
This week
John Kerry leaves the climate stage
STEPPING DOWN: John Kerry, the US special presidential envoy for climate, will soon leave his role in order to support Joe Biden in the US presidential election later this year, Axios reported. His retirement “comes at a time of political threat to Biden’s climate agenda, with the possibility of a second Trump presidency looming”, the Financial Times noted.
UNCERTAIN FUTURE: Kerry was “key to brokering the crucial 2015 Paris Agreement” and “worked effectively with China despite strained diplomatic ties”, BBC News reported. The New York Times said that the role of climate envoy is a “major diplomatic role that was created especially for him and…will face an uncertain future with his departure”. It added that “no successor has yet been tapped”.
Labour’s climate pledge
GREEN COMMITMENT?: Labour’s £28bn climate investment pledge “was not included in Labour’s…‘campaigning bible’”, the Daily Telegraph reported, throwing the policy “into fresh doubt”. A Labour spokesperson told the newspaper that the party is still committed to the plan despite the omission. But Labour shadow chancellor Rachel Reeves told the Times that the figure might be scaled back, “if Tory spending commitments meant there was less money to spend”.
FACING PRESSURE: Right-leaning media outlets continued to heavily criticise Labour’s climate policy this week. The Daily Telegraph characterised it as “fanciful”, while separate articles in the Sun called the plan a “massive green splurge” and said that Labour might “impose punitive green policies if they get into government”.
ECONOMIC BENEFITS: However, former Conservative MP Chris Skidmore, in an interview with Carbon Brief, said that he believes “the Labour Party’s decision to come out and say that we should be investing in green industries…is the right one”. The possible economic boost from such investment means “there’s an economic case to be won, as well as a values case, at this election”, he added.
Around the world
- DEFORESTATION SLOWING: The Amazon saw deforestation rates fall by nearly 50% in 2023 compared to the previous year, BBC News reported.
- SHELL PRESSURE: 27 investors demanded that Shell improve its environmental targets at its annual meeting, the Financial Times said. Shell will also sell its controversial Nigerian onshore oil business, although it will continue with other oil, gas and solar projects in the country, reported Bloomberg.
- EU 2040 TARGET: The EU is discussing its climate target plan for 2040, with several member states supporting a target of a 90% emissions cut relative to 1990, reported Euractiv.
- FOSSILS AT COP: Azerbaijan released details of 28-strong organising committee for the COP29 climate summit containing no women on Monday, the Guardian reported. On Friday, On Friday, Azerbaijan announced it will make changes to the committee, the Azerbaijani Press Agency reported, although did not provide any further details.
- SNOW DEFICITS: The India Meteorological Department reported “large winter snowfall deficits” in some of India’s northern states, the Third Pole said, adding that the deficits could impact “crucial water-sharing treaties” with other countries.
14.5 million
The number of additional deaths by 2050 that could occur due to the impact of climate change on extreme weather and sea levels, and rising air pollution, according to the World Economic Forum.
Latest climate research
- A new paper in Geoscience Data Journal presented the results of a citizen science project to digitise weather observations recorded in UK Met Office daily weather reports between 1861 and 1875.
- Since 1985, the Greenland ice sheet has lost more than 5,000 square kilometres in area, corresponding to more than 1,000bn tonnes of ice lost, according to a new study in Nature.
- Research in Climatic Change revealed that, following wildfires in California between 2017 and 2021, there was a significant increase in tweets linking wildfires to climate change.
(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)
Captured

China’s population shrunk to 1.410 billion from a high of 1.413 billion in 2021, according to data released by China’s national bureau of statistics. Should this trend continue, the ageing of China’s population could “exacerbat[e] structural imbalances” in the country’s economy and slow overall growth, according to Reuters. This could have consequences for energy consumption and, thus, emissions. However, studies disagree on the exact link between ageing and emissions reduction – for example, one study found that population ageing “negatively correlates” with carbon emission intensity, while another argued that household emissions will rise as the population ages, especially in urban areas.
Spotlight
Who is China’s new climate envoy?
This week, Carbon Brief explores what China’s new climate envoy might mean for climate diplomacy.

On 12 January, China announced that career diplomat Liu Zhenmin (pictured) will replace Xie Zhenhua as China’s new special envoy on climate change.
The move was not a complete surprise, with Bloomberg floating the possibility in October 2023.
Liu was clearly positioned as Xie’s successor at COP28. Carbon Brief heard that, in one notable moment, Xie interrupted himself during a speech to claim he was feeling tired, handing the stage to Liu to finish the speech instead.
Does Liu have climate experience?
Liu began his career in the ministry of foreign affairs, rising to vice minister. He was appointed under-secretary-general for economic and social affairs at the United Nations (UN) in 2017.
Much of Liu’s work at the UN included a “climate change and sustainable development” brief, foreign ministry spokesperson Mao Ning told reporters on Monday. She added:
“We believe that [he] will continue stepping up dialogue and cooperation with all parties.”
Liu is familiar with climate negotiations, having attended 10 COPs. He was involved in negotiations to develop both the Kyoto Protocol and Paris Agreement, Bloomberg reported.
“Liu was a key driver in landing the Kyoto Protocol,” Yuan Ying, Greenpeace East Asia chief China representative, tells Carbon Brief. “That is a promising piece of experience.”
What does this mean for China’s climate policy?
Bloomberg described Liu as a “non-controversial option” – and his public statements have largely been in line with China’s official positions.
In an interview with Caijing Eleven at the COP28 climate summit, he said that countries must “balance” ambition and pragmatism and that China’s transition away from coal will be “difficult”.
“China is doing real work, especially in the rapid development of renewable energy”, he said, which will gradually replace coal.
“Developed countries still have to take the lead in making changes in order to leave more space for the economic growth of developing countries,” he added.
Nevertheless, his past comments have hinted at areas of personal interest. He wrote two articles arguing that “more must be done to ensure that investments…do not undermine our efforts to address climate change.”
He also described the circular economy as “one of [his] favourite topics during [his] tenure at the UN” during an event on the sidelines of COP28.
Will China cooperate with developed countries on climate?
Liu attended COP28 as a senior adviser to Xie, allowing him to cement relationships with his future counterparts.
He was seen by Carbon Brief in multiple meetings with the US’s John Kerry and Susan Biniaz. German climate envoy Jennifer Morgan confirmed in a COP28 side-event attended by Carbon Brief that she and Liu also held discussions.
Nevertheless, Kerry and Xie’s departure increases uncertainty around future US-China alignment, a dynamic key to breakthroughs at the COPs in Paris, Glasgow and Dubai.
Li Shuo, director of the Asia Society Policy Institute’s China Climate Hub, is not optimistic. He told Politico that “if climate change generates news on the US-China front in 2024[,] it is more likely bad news than good”.
Watch, read, listen
2024 EXPECTATIONS: Carbon Tracker outlined some of the key issues to watch in climate and energy in 2024, including India’s elections, the adoption of climate disclosure rules in the US and the development of the East African crude oil pipeline.
GIGAFACTORY TOUR: The Fully Charged Show gained rare access to one of Chinese battery manufacturer CATL’s gigafactories, taking viewers on a tour of how batteries are made.
PROBLEM-SOLVING: On the BBC Radio 4’s Start the Week, host Kirsty Wark spoke with Our World in Data’s Hannah Ritchie, Bloomberg Green’s Akshat Rathi and the British Antarctic Survey’s Michael Meredith about solutions to tackle climate change.
Coming up
- 24 January: International Energy Agency (IEA) Electricity Market report launch, Paris, France
- 25-26 January: G20 first International Financial Architecture working group meeting, Vila do Conde, Brazil
- 26 January: Tuvalu general elections
Pick of the jobs
- The Centre for Climate Reporting, junior investigations reporter | Salary: £26,000-30,000. Location: Remote
- The Wellcome Trust, policy adviser on climate and health | Salary: £53,527. Location: London
- Environmental Justice Foundation, Taiwan climate campaigner | Salary: NTD 65,000-85,000. Location: EJF Taipei office (hybrid working)
- Power Shift Africa, media and communication associate | Salary: Unknown. Location: Open to Africans of all backgrounds
DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org
The post DeBriefed 19 January 2024: John Kerry retires; Uncertainty over UK Labour’s pledge; China’s new climate envoy profiled appeared first on Carbon Brief.
Climate Change
Science ‘under attack’ from fossil fuel interests at UN climate talks
Dozens of countries have called out growing “coordinated attacks” by fossil fuel interests aimed at undermining the role of climate science in the UN negotiations at the mid-year talks in Bonn.
Under the banner of ‘Friends of Science’, in an overflowing press conference room lined with negotiators and civil society supporters, diplomats from Fiji, Nepal, the European Union, Switzerland, Sierra Leone and Panama vowed to ensure that decision-making in the UN climate process remains based on the “best available science”. That includes reports from the Intergovernmental Panel on Climate Change (IPCC), the UN’s climate science body, they said.
While steering clear of singling out any specific country, they said efforts to cast doubt on established scientific concepts, such as the 1.5 global warming limit, are led by “the usual suspects” and those who think “science threatens their economic prospects”.
Saudi Arabia and India have opposed calls in draft texts to encourage scientific work on scenarios that would minimise the magnitude and duration of any overshoot of 1.5C, according to one negotiator in the room and summaries of closed-door discussions published by a reporting service.
UN chief António Guterres conceded last year that a temporary breach of the key warming limit is inevitable, while urging countries to redouble efforts to bring temperatures back down.
‘Polluted narrative’
Scientists have long established that burning fossil fuels is the primary cause of man-made climate change and a rapid shift away from oil, coal and gas is essential to curb global warming.
Saudi Arabia is dependent on oil and gas exports, while India largely relies on coal to power its economic development.
One negotiator said that research on how climate action can be equitable for developing countries, produced by Indian universities, had been published too late to be incorporated into the last IPCC assessment report in 2023. This incident led the Indian government to try and discredit the IPCC, they said. Some Indian scientists have argued that the IPCC’s scenarios are unfair on developing countries.
Saudi Arabia and India have played down the importance of making sure that the latest IPCC assessments – regarded as the gold standard of climate science – are available for the next global stocktake, the UN scorecard of climate action around the world.
“Anyone that is blocking references to science – they are not our friends,” Sivendra Michael, lead negotiator for Fiji, told a press conference, highlighting the rise of a “polluted narrative” both inside and outside the negotiating rooms.
1.5C is a ‘hard limit’
Speaking for the AILAC coalition of Latin American countries, Panama’s Ana Aguilar said they went to Bonn to negotiate positions, not to negotiate the facts laid out by science.
“We see coordinated efforts to cast doubt on the best available science driven by a narrow set of interests, not by the needs of our people,” she added. “We have seen this playbook before… manufacture doubt, delay the response and let the vulnerable people pay this bill.”


The ‘Friends of Science’ coalition stressed that the 1.5C goal of the Paris Agreement cannot be negotiated, as the survival of the most climate vulnerable communities is at stake if it is permanently breached.
“Science tells us that 1.5C is a hard limit for many countries, including the small island developing states and least developed countries,” said Manjeet Dhakal, a negotiator for Nepal. “We still have a chance to keep 1.5 degrees in reach and minimise the overshoot if we act fast and drastically.”
Long-running IPCC standoff
While diplomats claimed attacks on science are broadening, one long-standing issue of contention is whether the latest assessment reports of the IPCC will be ready in time for the next UN global stocktake due to start this November and end in 2028.
This matters because, as some experts have pointed out, previous IPCC findings played a key role in the first such exercise, which culminated at COP28 in Dubai in the landmark agreement on transitioning away from fossil fuels in energy systems.
Since the start of the latest IPCC assessment cycle, known as AR7, a battle over the timing has dragged on for over two years at successive IPCC meetings, with governments repeatedly failing to find a breakthrough.
A large majority of nations have been pushing for an accelerated timeline that would ensure the AR7 reports can be fed into the UN’s global stocktake. But a group of countries, including Saudi Arabia, India, China, Russia and Kenya, have said at previous IPCC meetings they want a longer process, arguing a fast-tracked assessment would put a burden on developing countries with limited resources.
Science and the stocktake
That fight has now bled into the Bonn talks where governments began discussing the arrangements for the next stocktake. At a session earlier this week, most developed countries, Latin American and small island states, and the world’s poorest nations emphasised the assessment of collective climate action must be guided by the “best available science” – code for the findings of the IPCC reports.
The Maldives, speaking for small island states, said IPCC science remains “essential to the integrity, credibility and usefulness” of the stocktake. AILAC said that starting the process “on the right footing” requires a political decision on the timeline to deliver the AR7 reports in time. Switzerland said IPCC reports “ask more than is politically comfortable, but that is precisely why they must guide every decision we make”.
Saudi Arabia, however, said no particular scientific input – and in particular what comes out of the IPCC – should be prioritised. Similarly, India warned against creating “some kind of preferred hierarchy” in the role that any specific source of information should play in the process.
Ghana’s Antwi-Boasiako Amoah, who chairs the African Group, told a press conference on Tuesday that some countries think rushing to get IPCC inputs into the global stocktake could “undermine or compromise the IPCC process”. “Africa is for science,” he said, without saying where the continent stands on the IPCC timeline.
Crunch talks in October
At the “Friends of Science” press conference, Dhakal pushed back on the idea that science would have to be rushed to be incorporated. He said the IPCC leadership has “perfectly made it clear” that they can deliver the report before the global stocktake. “It is the scientists who are saying they can deliver it on time,” he said.


The discussion will be picked up again at the next IPCC session in October, where its boss Jim Skea is hoping to reach an agreement. “As a scientist myself, I cannot overstate the importance of this decision,” he told governments in Bonn last week.
Andreas Sieber, head of political strategy at campaigning group 350.org, told Climate Home News that the debate may sound procedural, “but it is anything but”. “Science is the backbone of the Paris Agreement ambition cycle, and the evidence assessed through AR7 will help determine not only the emissions pathways countries pursue, but also how the world responds to mounting climate losses and who receives support,” he said in Bonn.
The post Science ‘under attack’ from fossil fuel interests at UN climate talks appeared first on Climate Home News.
Science ‘under attack’ from fossil fuel interests at UN climate talks
Climate Change
Cropped 17 June 2026: Coral reef ‘hope’ | Ocean talks | Plant flowering times ‘shift’
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
Ocean talks
MAKING WAVES: African and Commonwealth countries issued a “call to action” to implement the High Seas Treaty at the Our Ocean Conference in Kenya this week, reported the Associated Press. The summit, which ends on 18 June, is focused on ocean issues including “climate change, biodiversity and pollution”, said the newswire. The UK government announced £13.9m in marine-related funding at the summit.
OCEAN ‘STRAIN’: Climate change, pollution, overfishing and biodiversity loss are putting oceans under “severe strain”, according to a UN report. The third “world ocean assessment” noted that conservation efforts have also “grown”, including through “nature-based solutions, ecosystem restoration and sustainable management techniques”. Meanwhile, another UN report said that fisheries and aquaculture production reached an all-time high of 235m tonnes in 2024.
OBSERVATION ISSUES: Scientists told the Guardian that the Trump administration’s plan to dismantle a key ocean-observation system run by the US would “severely degrade” the accuracy of weather forecasts around the world. Several Democratic and one Republican lawmaker pushed back against the plan to get rid of the system, reported the Associated Press. [For more, see the first edition of Cited, Carbon Brief’s newsletter on climate science.]
Plant and fungi update
OFF-KILTER: Plant flowering times have “shifted significantly” over the last century, according to an AI-assisted analysis of 8m “digitised herbarium specimens” in the latest “state of the world plants and fungi” report from the Royal Botanic Gardens Kew. The report stated there have been “both advances and delays” in flowering date, with a median shift of 2.5 days per decade in either direction. The greatest variation was observed in the tropics, it added.
‘NEW ERA’: The report highlighted that Kew recently completed a digitisation of 7.4m herbarium and fungarium specimens in its collection. The ongoing digitisation of specimens around the world, alongside AI technology, could “transform understanding of biodiversity loss and climate change and pave the way to resolving these seemingly intractable crises”, it said.
EXTINCTION RISK: In its coverage of the report, the Guardian said that AI and digitalisation could help scientists document “vital” plant species “before they vanish”. About 40% of the world’s “assessed” 70,000 plant species are at risk of extinction, while a further 330,000 are yet to be analysed, according to the newspaper. The situation for fungi is “even more stark”, it reported, with 90% of an estimated 2m species still “unknown to science” and less than 1% of known species assessed for extinction risk.
News and views
- BEEF TRACKS: A “landmark” law in Colombia requiring the beef industry to prove supply chains are deforestation-free has taken effect, reported the Associated Press. The measure is part of efforts to “reverse decades of forest loss, much of it driven by the expansion of cattle ranching into previously forested areas”, noted the newswire.
- CONTINGENCY PLAN: With El Niño conditions officially confirmed as underway, the Indian government called for an “overhaul” of agricultural districts’ plans for managing the impact of below-normal rainfall on crops, reported Down to Earth. Around 150-200 districts have been identified as “most critical” based on projections, the outlet noted.
- MEATIER: Global meat supply has increased fourfold in the past six decades, according to a UN report covered by the Guardian. Agriculture’s “planet-heating emissions are forecast to rise by 7.6% over the next decade” as food production continues to grow, the newspaper said.
- TREES, NOT TARMAC: Kenya’s former chief justice, David Maraga, was among a number of protesters arrested in Nairobi for demonstrating against plans to turn 75 acres of Nairobi National Park into a car park, reported Kenya’s Daily Nation. Demonstrators were en route to deliver a petition to Kenya’s Wildlife Service when they were interrupted by anti-riot police officers, according to the newspaper.
- MANGROVES BACK, ALRIGHT: A new study covered by BBC News found that mangrove forests are “staging an unexpected comeback” globally. The broadcaster said mangroves had been “declining rapidly as they were cleared for fish farms and housing”, but the world is now “gaining more mangroves than it has been losing”.
- ‘LIMITED’ PROGRESS: Some 59% of the world’s largest financial institutions do not have a deforestation policy in place, according to the latest “forest 500” report from Global Canopy. The report – which assesses the 150 financial institutions that provide the most financing to the 500 companies with the “greatest influence” on deforestation – described finance sector progress on forest loss in 2025 as “limited”.
Spotlight
Coral reef ‘hope’
This week, Carbon Brief reports on research estimating coral reef resilience.
New research offers a sliver of “hope” that 30% of the world’s coral reefs could be “resilient” against the harmful effects of climate change.
The study, which is in the final stages of peer review and due to be published soon, identified swathes of reefs that have the best potential to withstand and recover from marine heatwaves and other stressors.
Climate change is a major threat to the survival of coral reefs. In a 2018 report, the UN’s science body warned that reefs could decline by an additional 70-90% at 1.5C of warming and as much as 99% under 2C.
The areas of potentially resilient reefs identified in the new study span almost 166,000 square kilometres – an area twice the size of Scotland.
These reefs are spread across 71 countries and 100 territories, but 61% are found in the territorial waters of just five nations – Australia, the Bahamas, Cuba, Indonesia and the Philippines.
The lead study author, Dr Kyle Zawada from Macquarie University in Australia, told Carbon Brief that the research shows the areas that could most likely “persist through climate change”. He added:
“[Coal reefs] are obviously in dire straits – but that’s not to say there are not pockets of resistance and pockets of resilience.”
Fewer than 30% of the reefs deemed to be the most climate-resilient are contained in protected or conserved areas, the study noted.
The map below shows a snapshot of the findings, highlighting the Great Barrier Reef off the north-eastern coast of Australia. The light pink areas are regular reefs, while the slightly darker pink are “climate-resilient” reefs.

Reef maps
The team, led by researchers from Macquarie University and the Wildlife Conservation Society, used the findings from more than 45,000 research surveys on corals over 1960-2025 in modelling simulations to create a map of coral cover around the world in 2020 and projections for 2050.
The modelling looked at various scenarios of future emissions and the researchers developed criteria to determine which reefs could be best positioned to survive or recover from extreme events and higher temperatures.
This specified that, for example, larger-sized reefs and those with a wide diversity of coral species tend to be more resilient than smaller areas with a lower variety of coral.
Zawada told Carbon Brief that the study does not replace real-life observations of how reefs respond to extremes. But, he added, it offers a “good guess” of areas to protect:
“It would be nice to say that there are these little reefs of hope, obviously with the massive asterisks that this doesn’t mean that these ones are out of the woods…and to sort of use that as a rallying call for us to take that hope forward and have a look at these reefs.”
Watch, read, listen
WAY DOWN: An interactive article in the New York Times detailed the ongoing “quest” to mine the deep sea.
‘PING-PONG SPONGES’: The Guardian delved into the “secrets of the deep sea”.
DENTAL DAMAGE: A dentist wrote about how “extreme heat is turning Pakistani farmworkers’ mouths into hostile environments for their own teeth” in the Earth Island Journal.
‘PIG ELECTION’: DeSmog explored the impacts of Denmark’s plans to “radically overhaul its drinking water policy as part of a raft of sweeping reforms to the country’s livestock industry”.
New science
- Lower rainfall levels, driven by deforestation, led to a reduction in soya bean production in southern Brazil over 1982–2018 | Proceedings of the National Academy of Sciences
- A “partial ecosystem collapse scenario” that considers changes to tropical timber, wild pollination and marine fisheries services could increase the annual debt-servicing costs of 23 countries by $162bn | Nature Ecology & Evolution
- Around 7% of the global population of Tapanuli orangutans – the “world’s rarest ape” – was killed after extreme rainfall led to “widespread landslides” in Sumatra, Indonesia, in 2025 | Current Biology
In the diary
- 19 June-27 June: London climate action week
- 21 June: Colombian presidential elections (second round)
- 22-26 June: 26th meeting of the UN open-ended informal consultative process on oceans and the law of the sea | New York City
- 30 June-4 July: 4th meeting of partners of the Global Peatlands Initiative | Lima, Peru
The post Cropped 17 June 2026: Coral reef ‘hope’ | Ocean talks | Plant flowering times ‘shift’ appeared first on Carbon Brief.
Cropped 17 June 2026: Coral reef ‘hope’ | Ocean talks | Plant flowering times ‘shift’
Climate Change
Alabama’s Self-Proclaimed ‘AI Watchman’ Unseats Incumbent Public Service Commissioner
Jim Zeigler first served on the body nearly 50 years ago. Now the Republican is hoping his opposition to data centers will stave off a Democratic victory in November.
MOBILE, Ala.—Jim Zeigler didn’t have much time to celebrate.
Alabama’s Self-Proclaimed ‘AI Watchman’ Unseats Incumbent Public Service Commissioner
-
Climate Change10 months ago
Guest post: Why China is still building new coal – and when it might stop
-
Greenhouse Gases10 months ago
Guest post: Why China is still building new coal – and when it might stop
-
Greenhouse Gases2 years ago嘉宾来稿:满足中国增长的用电需求 光伏加储能“比新建煤电更实惠”
-
Climate Change2 years ago嘉宾来稿:满足中国增长的用电需求 光伏加储能“比新建煤电更实惠”
-
Climate Change2 years ago
Bill Discounting Climate Change in Florida’s Energy Policy Awaits DeSantis’ Approval
-
Renewable Energy8 months agoSending Progressive Philanthropist George Soros to Prison?
-
Carbon Footprint2 years agoUS SEC’s Climate Disclosure Rules Spur Renewed Interest in Carbon Credits
-
Greenhouse Gases11 months ago
嘉宾来稿:探究火山喷发如何影响气候预测




