Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Coral mass bleaching
FOURTH MASS BLEACHING: US government scientists confirmed that the world is facing its fourth mass coral bleaching event, which is on track to be the “most extensive on record”, the Guardian reported. Mass coral bleaching is a phenomenon of the climate change era, first occurring in 1998, the story said. It added that 54% of ocean waters with coral reefs have experienced heat stress high enough for bleaching.
BARRIER BREACHED: The Great Barrier Reef – the world’s largest coral reef – has been through its most acute and widespread heat stress event ever, Coral Reef Watch confirmed to the Guardian. Coral reef scientist Prof Terry Hughes told the New York Times that the “levels of heat stress measured in Florida, across the entire Caribbean, and now on the Great Barrier Reef are off the charts”.
THE BIG DRY: Meanwhile, scientists in the Conversation explained the causes of a mass vegetation “die-off” in Western Australia’s forests and shrublands in February 2024, as the region “sweltered” through its hottest summer on record. “Just like a coral bleaching event, plants are responding to the cumulative stress of the unusually long, hot and dry summer,” the authors wrote.
World Bank spring meetings
BETTER HAVE BILLIONS: All eyes were on the World Bank and International Monetary Fund (IMF) spring meetings in Washington DC this week. As civil society and economists said wealthy nations must pledge billions more in aid through the bank to tackle climate change, president Ajay Banga told journalists at the meeting “the climate crisis would be a priority” for the bank going forward, the Guardian reported. Experts quoted by the newspaper, however, questioned the bank’s willingness to reform “in a race against time”.
DEBT TRAP: While the “long-simmering theme” of who should pay for climate damages raised its head again, debt was at front and centre at the meetings, the Financial Times reported. A report quoted in a Climate Home News comment by Asian debt activist Lidy Nacpil warned that 47 developing countries could go bankrupt from climate spending, but cancelling fossil fuel debts could free up the money needed.
LUXURY LOANS: Elsewhere, a Climate Home News investigation found that the World Bank counted support for five-star luxury hotels in Senegal as climate finance. Fishermen told the publication that the hotels had “exacerbated erosion” in their area.
Dubai floods
DUBAI FLOODS: The UAE was hit by an intense storm, with almost a year and a half’s worth of rain pummeling the capital of Dubai on Tuesday, the Independent reported. The country experienced its heaviest rains in 75 years, said national meteorological authorities quoted in the Financial Times. The newspaper added that more than a dozen people were killed in neighbouring Oman. The rains were likely exacerbated by climate change, reported Reuters.
SEEDING DOUBT: While a Bloomberg article citing one person initially blamed “cloud-seeding” for the extreme rainfall, multiple meteorologists quoted in different outlets including the Guardian and the Associated Press debunked such claims. “You can’t create rain out of thin air per se and get six inches of water,” meteorologist Ryan Maue told AP.
DEJA VU DISASTER: Flash floods, lightning and heavy rain also claimed 63 lives in Pakistan, with the northwestern province of Khyber Pakhtunkhwa recording the most fatalities, the Associated Press reported. In Baluchistan, authorities declared a state of emergency, with more rains expected amid rescue and relief operations.
Around the world
- INDIA VOTES: The first phase of voting in India’s general elections began today, as millions queued in scorching summer temperatures. Carbon Brief mapped where key national parties stood on climate change in their election manifestos.
- DEFORESTATION DROPS: Deforestation on Indigenous lands across the Amazon has declined by 42% since last year and dropped to a six-year record low, according to a report by Brazilian research institute Imazon cited by O Globo.
- ECUADOR ENERGY EMERGENCY: On Tuesday, Ecuadorian president Daniel Noboa declared an “energy emergency”, after an El Niño-driven drought hit hydropower production and led to country-wide power cuts, Reuters reported.
- MORE FOOTWORK, MORE ENERGY: Scientist and Mexico’s election frontrunner Claudia Sheinbaum unveiled a $13.6bn investment plan for solar, wind, hydro and gas projects, Reuters reported, calling it a “significant shift” from the current president’s oil-first priorities.
- SCOTLAND SETBACK: The first country in the world to declare a “climate emergency” is “ditching” its ambitious target of reducing emissions by 75% by 2030, BBC News reported, after failing to meet eight of its 12 last annual targets.
- SBTi CONTROVERSY: The Science Based Targets initiative, the leading arbiter of corporate climate targets, said there was “no change” to its standards, after an earlier suggestion that companies might be able to use carbon offsets to meet their goals led to a staff revolt, the Financial Times reported.
$38 trillion
The annual cost of rising temperatures, heavier rainfall and more frequent and intense extreme weather by 2049, under a medium emissions scenario, according to a new study by Germany’s Potsdam Institute for Climate Impact Research.
Latest climate research
- The Atlantic hurricane season could increase by well over a month (between 27 to 41 days) in the future because of the combined impact of climate change and natural climate variability, according to new research in Geophysical Research Letters.
- Marine animals seeking cooler temperatures as oceans warm could end up in areas where they will be exposed to deadly cold snaps, new research found. Carbon Brief had all the details.
- A new World Weather Attribution study found that El Niño was a “key driver” of a current severe drought in southern African countries, while climate change did not play as significant a role. A second WWA study found that an extreme heatwave striking the Sahel region between the end of March and the beginning of April would have been impossible without 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

New documents obtained by Carbon Brief as part of a freedom-of-information (FOI) request revealed that the UK government reclassified nearly £500m in humanitarian aid meant for war-torn nations as climate finance, in a bid to help meet its pledges under the Paris Agreement. According to Carbon Brief analysis, the humanitarian projects in nations such as Afghanistan, Yemen and Somalia being “double-counted” as climate finance have no explicit link to climate action. While the UK was previously viewed as setting higher standards than other countries on climate finance, experts told Carbon Brief that the government’s new approach of repackaging development and humanitarian aid instead of providing new money “risks breeding cynicism and mistrust”.
Spotlight
Elections in India’s coal and elephant country
On the eve of India’s general elections, Carbon Brief travels to the central Indian state of Chhattisgarh to speak to Indigenous communities protesting against coal mining in their sacred Hasdeo Arand forest.

On the winding hill road to the Hasdeo Arand forest, I was told by Indigenous activists to not get my hopes up for what I would – and would not – get to see. “Things are tense,” said an anxious Ramlal Kariyam on the phone to me. A thatched forest camp on the edge of the Parsa East Kete Basan (PEKB) coal mine was burned to the ground at 2am on 25 March, days before my visit. Police are still investigating the incident.
The camp was the epicentre of two-year-long relay protests to save one of India’s last contiguous tracts of dense sal forest from being clear-felled for coal. I had hoped to see the PEKB mine’s expansion and signs of rapid deforestation, but did not want to put villagers at risk. What I did not count on seeing through the sal trees on the side of the road was an elephant.
For years, India’s forest and state authorities ignored and concealed the presence of an elephant corridor in Hasdeo Arand, as they approved further fragmentation of what was once a “no-go” forest for coal mining. Even a spanner-like verdict in 2014 from India’s top environmental court acknowledging elephant presence and cancelling forest permits could not pause the excavators: its judgement remains stayed by India’s supreme court.
Mining in Hasdeo Arand began with the Bharatiya Janata Party (BJP) in power at the state level and the Congress party at the centre. But it gained pace after Modi assumed power at the national level in 2014. In 2018, voters in these districts gave Congress its most comprehensive victory in Chhattisgarh, after giving assurances that it would put Indigenous rights first. Instead, Congress greenlit the clearing of even more tracts of forest for coal and was voted out last December.
“There’s no relief for us in coal areas…In 2014, we passed resolutions in all our villages saying that there is very dense forest here that should never be bartered for coal, but the government has continued auctioning our lands based on falsified consent,” alleged Umeshwar Singh Armo, the 43-year-old chief of the village of Paturia, speaking to Carbon Brief in the spartan mud office of the Save Hasdeo Movement (pictured above). “We’ve tried every democratic, peaceful means to talk to the government, but nothing has happened.”
While mining was slow to first begin, its reserves have been exhausted faster than expected. “Brother, how much coal do you want? They’re mining with such speed that they can finish a place’s wealth in five years,” said Ramlal. “When I’m sitting alone, I often think to myself: Will we be able to save this place? When we’re displaced, what will happen to all the other creatures here? The state is extinguishing so many lives and species for just one man.”
The only thing that has been able to significantly stop more coal blocks from going under the hammer? Elephants.
In 2021, the state cabinet agreed to establish the stalled Lemru elephant reserve. In 2022, Chhattisgarh’s then-chief minister from the Congress party told the Modi government’s coal ministry that two coal blocks – including Gidhmuri-Paturia where Singh lives – should not be mined because they fall within the elephant reserve’s boundaries.
“Both [Congress and BJP] governments [state and national] work for the benefit of mining companies, but at least the Congress listens to democratic movements like ours that oppose mining,” said Singh. “The BJP, it doesn’t have that. If forests are finished, villages are finished, other species are finished, it makes no difference to them. The many laws that exist are all broken and made subservient to coal, they can magically turn dense forests into scrub forests when it suits them.”
As of last week, the movement has rebuilt its protest camp and is considering supporting Indigenous-led parties. Singh is defiant. He concluded:
“For the longest time, it’s just these two parties that called the shots, and yet both parties lost when they failed to keep our movements in mind. If you want to take our forest land from us, the very least you can do is to talk to us about it.”
Watch, read, listen
SWISS PRECEDENT: A podcast by the Guardian spoke to 76-year-old Elisabeth Stern, part of a 2,400-strong group of senior Swiss women who won a landmark climate case last week in the European court for human rights.
LOST SHEIN: A new longread in n+1 reviewed the strange, online universe of fast fashion’s “worst offender” Shein and the material costs of throwaway textile retail.
EV MYTHS BUSTED: Carbon Brief’s Dr Simon Evans busted electric vehicle myths on the Canadian podcast Buzzkill.
Coming up
- 15-20 April: World Bank and International Monetary Fund Spring Meetings, Washington DC
- 19 April: First phase of voting in India’s general election begins
- 23 April: IEA’s Global EV Outlook 2024 report launch, Paris
- 23-29 April: Fourth session of intergovernmental negotiations to develop a binding plastics treaty, Ottawa, Canada
Pick of the jobs
- Nature Communications, associate or senior editor (physical oceanography and climate sciences) | Salary: $74,000 or $91,000. Location: Shanghai, Beijing, Nanjing, New York, Washington, Jersey City or Pune (hybrid)
- Mongabay, staff writer – west and central Africa | Salary: Unknown. Location: Must be based in any part of west or central Africa
- Loss and Damage Research Observatory, scholars for the Saleemul Huq Memorial Scholarship | Scholarship amount: $5,000, with an additional $1,000 towards travel and research expenses. Location: Hybrid, researchers and local organisations from Least Developed Countries (LDCs) and Small Island Developing States (SIDS)
DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.
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The post DeBriefed 19 April 2024: ‘Most extensive’ global coral bleaching; World Bank spring meetings; India’s election kicks off appeared first on Carbon Brief.
Climate Change
Drought Turns Southeastern US Into ‘Tinderbox’ as Wildfires Rage
Weather extremes fuel wildfires that have burned through tens of thousands of acres across Georgia, Florida and other states.
Drought and fire are a dangerous duo. The Southeastern United States is witnessing this firsthand as several major blazes burn tens of thousands of acres across the parched region, destroying homes and prompting evacuations in some areas. Florida and Georgia have been particularly hard hit, and strong winds and unusually low humidity have made it difficult to combat the flames.
Drought Turns Southeastern US Into ‘Tinderbox’ as Wildfires Rage
Climate Change
Night Skies and Shifting Stars: How Indigenous Celestial Knowledge Tracks a Changing Climate
When the land no longer answers the stars the way it once did, Indigenous peoples are among the first to notice — and the first to ask why.
A Sky Full of Knowledge
Look up on a clear night on Turtle Island and you’re seeing a sky that has guided human life for thousands of years. Across Indigenous nations in Canada, detailed systems of celestial knowledge developed not as abstract science but as living, practical guides —telling people when to plant, when to harvest, when herds would move, and when ice would come. This astronomical knowledge was woven into language, ceremony, and everyday life, passed down through generations with remarkable precision.
The Mi’kmaq and the Celestial Bear
Among the Mi’kmaq of Atlantic Canada, star stories are ecological calendars, precise and functional. The story of Muin and the Seven Bird Hunters connects the annual movement of what Western astronomy calls Ursa Major to the seasonal cycle of hunting and harvest: the bear rises in spring, is hunted through summer, and falls to earth in autumn. This knowledge was brought to broader public attention in 2009 during the International Year of Astronomy, when Mi’kmaq Elders Lillian Marshall of Potlotek First Nation and Murdena Marshall of Eskasoni First Nation shared the story through an animated film produced at Cape Breton University narrated in English, French, and Mi’kmaq.¹ The story encodes specific observations about when and where to hunt, and which species to expect at which time of year. It is science in narrative form.
The Anishinaabe and the Seasonal Star Map
Among the Anishinaabe peoples of the Great Lakes and northern Ontario, celestial knowledge forms part of a comprehensive seasonal understanding. Knowledge keepers like Michael Wassegijig Price of Wikwemikong First Nation have described how Anishinaabe constellations quite different from those of Western astronomy connect the movement of the heavens to naming ceremonies, seasonal gatherings, and land practices.² The Royal Astronomical Society of Canada now offers planispheres featuring Indigenous constellations from Cree, Ojibwe, and Dakota sky traditions, recognizing their value as both cultural heritage and ecological knowledge systems.³
When the Stars and the Land Fall Out of Rhythm
Here’s the challenge that climate change has introduced: the stars still move on their ancient, reliable schedule. But the land no longer always responds as expected. Migratory birds that once arrived when certain constellations appeared are now showing up earlier or later. Ice that once formed in predictable windows is forming weeks late, or not at all. Berry harvests, fish runs, animal migrations, all once timed by celestial cues accumulated over millennia are shifting. Indigenous knowledge holders across Canada describe this as a kind of dissonance: the sky remains faithful, but the land has changed.⁴
Long-Baseline Ecological Records
Far from being historical curiosity, Indigenous celestial knowledge systems are now being recognized by researchers as long-baseline ecological calendars —records of how nature behaved over centuries, encoded in story and ceremony. When an Elder observes that a particular star rising no longer predicts the arrival of certain geese, that observation represents a departure from a pattern that may have held true for hundreds of years. The Climate Atlas of Canada integrates Indigenous knowledge observations alongside western climate data, recognizing that both contribute meaningfully to understanding ecological change.⁵
Keeping the Knowledge Alive
Language revitalization and land-based education programs are helping ensure this knowledge reaches the future. From youth astronomy nights on-reserve to the integration of Indigenous sky stories in school curricula, there is growing recognition that these knowledge systems belong to what comes next, not only what came before. As Canada grapples with accelerating ecological change, the quiet precision of thousands of years of skyward observation offers something no satellite can fully replicate: a continuous record of the relationship between the cosmos and a living land.
Blog by Rye Karonhiowanen Barberstock
Image Credit: Dustin Bowdige, Unsplash
References
[1] Marshall, L., Marshall, M., Harris, P., & Bartlett, C. (2010). Muin and the Seven Bird Hunters: A Mi’kmaw Night Sky Story. Cape Breton University Press. See also: Integrative Science, CBU. (2009). Background on the Making of the Muin Video for IYA2009. http://www.integrativescience.ca/uploads/activities/BACKGROUND-making-video-Muin-Seven-Bird-Hunters-IYA-binder.pdf
[2] Price, M.W. (Various). Anishinaabe celestial knowledge. Wikwemikong First Nation. Referenced in: Royal Astronomical Society of Canada Indigenous Astronomy resources.
[3] Royal Astronomical Society of Canada. (2020). Indigenous Skies planisphere series. RASC. https://www.rasc.ca/indigenous-skies
[4] Neilson, H. (2022, December 11). The night sky over Mi’kmaki: A Q&A with astronomer Hilding Neilson. CBC News. https://www.cbc.ca/news/canada/newfoundland-labrador/hilding-neilson-indigenizing-astronomy-1.6679072
[5] Climate Atlas of Canada. (2024). Prairie Climate Centre, University of Winnipeg. https://climateatlas.ca/
The post Night Skies and Shifting Stars: How Indigenous Celestial Knowledge Tracks a Changing Climate appeared first on Indigenous Climate Hub.
https://indigenousclimatehub.ca/2026/04/night-skies-and-shifting-stars-how-indigenous-celestial-knowledge-tracks-a-changing-climate/
Climate Change
World ‘will not see significant return to coal’ in 2026 – despite Iran crisis
A much-discussed “return to coal” by some countries in the wake of the Iran war is likely to be far more limited than thought, amounting to a global rise of no more than 1.8% in coal power output this year.
The new analysis by thinktank Ember, shared exclusively with Carbon Brief, is a “worst-case” scenario and the reality could be even lower.
Separate data shows that, to date, there has been no “return to coal” in 2026.
While some countries, such as Japan, Pakistan and the Philippines, have responded to disrupted gas supplies with plans to increase their coal use, the new analysis shows that these actions will likely result in a “small rise” at most.
In fact, the decline of coal power in some countries and the potential for global electricity demand growth to slow down could mean coal generation continues falling this year.
Experts tell Carbon Brief that “the big story isn’t about a coal comeback” and any increase in coal use is “merely masking a longer-term structural decline”.
Instead, they say clean-energy projects are emerging as more appealing investments during the fossil-fuel driven energy crisis.
‘Return to coal’
The conflict following the US-Israeli attacks on Iran has disrupted global gas supplies, particularly after Iran blocked the strait of Hormuz, a key chokepoint in the Persian Gulf.
A fifth of the world’s liquified natural gas (LNG) is normally shipped through this region, mainly supplying Asian countries. The blockage in this supply route means there is now less gas available and the remaining supplies are more expensive.
(Note that while the strait usually carries a fifth of LNG trade, this amounts to a much smaller share of global gas supplies overall, with most gas being moved via pipelines.)
With gas supplies constrained and prices remaining well above pre-conflict levels, at least eight countries in Asia and Europe have announced plans to increase their coal-fired electricity generation, or to review or delay plans to phase out coal power.
These nations include Japan, South Korea, Bangladesh, the Philippines, Thailand, Pakistan, Germany and Italy. Many of these nations are major users of coal power.
Such announcements have triggered a wave of reporting by global media outlets and analysts about a “return to coal”. Some have lamented a trend that is “incompatible with climate imperatives”, while others have even framed this as a positive development that illustrates coal’s return “from the dead”.
This mirrors a trend seen after Russia’s invasion of Ukraine in 2022, which many commentators said would lead to a surge in European coal use, due to disrupted gas supplies from Russia.
In fact, despite a spike in 2022, EU coal use has returned to its “terminal decline” and reached a historic low in 2025.
Gas to coal
So far, the evidence suggests that there has been no return to coal in 2026.
Analysis by the Centre for Research on Energy and Clean Air found that, in March, coal power generation remained flat globally and a fall in gas-fired generation was “offset by large increases in solar and wind power, rather than coal”.
However, as some governments only announced their coal plans towards the end of March, these figures may not capture their impact.
To get a sense of what that impact could be, Ember assessed the impact of coal policy changes and market responses across 16 countries, plus the 27 member states of the EU, which together accounted for 95% of total coal power generation in 2025.
For each country, the analysis considers a maximum “worst-case” scenario for switching from gas to coal power in the face of high gas prices.
It also considers the potential for any out-of-service coal power plants to return and for there to be delays in previously expected closures as a result of the response to the energy crisis.
Ember concludes that these factors could increase coal use by 175 terawatt hours (TWh), or 1.8%, in 2026 compared to 2025.
(This increase is measured relative to what would have happened without the energy crisis and does not account for wider trends in electricity generation from coal, which could see demand decline overall. Last year, coal power dropped by 63TWh, or 0.6%.)
Roughly three-quarters of the global effect in the Ember analysis is from potential gas-to-coal switching in China and the EU.
Other notable increases could come from switching in India and Indonesia and – to a lesser extent – from coal-policy shifts in South Korea, Bangladesh and Pakistan.
However, widely reported policy changes by Japan, Thailand and the Philippines are estimated to have very little, if any, impact on coal-power generation in 2026. The table below briefly summarises the potential for and reasoning behind the estimated increases in coal generation in each country in 2026.
Dave Jones, chief analyst at Ember, stresses that the 1.8% figure is an upper estimate, telling Carbon Brief:
“This would only happen if gas prices remained very high for the rest of the year and if there were sufficient coal stocks at power plants. The real risk of higher coal burn in 2026 comes not from coal units returning…but rather from pockets of gas-to-coal switching by existing power plants, primarily in China and the EU.”
Moreover, Jones says there is a real chance that global coal power could continue falling over the course of this year, partly driven by the energy crisis. He explains:
“If the energy crisis starts to dent electricity demand growth, coal generation – as well as gas generation – might actually be lower than before the crisis.”
‘Structural decline’
Energy experts tell Carbon Brief that Ember’s analysis aligns with their own assessments of the state of coal power.
Coal already had lower operation costs than gas before the energy crisis. This means that coal power plants were already being run at high levels in coal-dependent Asian economies that also use imported LNG to generate electricity. As such, they have limited potential to cut their need for LNG by further increasing coal generation.
Christine Shearer, who manages the global coal plant tracker at Global Energy Monitor, tells Carbon Brief that, in the EU, there is a shrinking pool of countries where gas-to-coal switching is possible:
“In Europe, coal fleets are smaller, older and increasingly uneconomic, while wind, solar and storage are becoming more competitive and widespread.”
In the context of the energy crisis, Italy has announced plans to delay its coal phaseout from 2025 to 2038. This plan, dismissed by the ECCO thinktank as “ineffective and costly”, would have minimal impact given coal only provides around 1% of the country’s power.
Notably, experts say that there is no evidence of the kind of structural “return to coal” that would spark concerns about countries’ climate goals. There have been no new coal plants announced in recent weeks.
Suzie Marshall, a policy advisor working on the “coal-to-clean transition” at E3G, tells Carbon Brief:
“We’re seeing possible delayed retirements and higher utilisation [of existing coal plants], as understandable emergency measures to keep the lights on, but not investment in new coal projects…Any short-term increase in coal consumption that we may see in response to this ongoing energy crisis is merely masking a longer-term structural decline.”
With cost-competitive solar, wind and batteries given a boost over fossil fuels by the energy crisis, there have been numerous announcements about new renewable energy projects since the start of war, including from India, Japan and Indonesia.
Shearer says that, rather than a “sustained coal comeback” in 2026, the Iran war “strengthens the case for renewables”. She says:
“If anything, a second gas shock in less than five years strengthens the case for renewables as the more secure long-term path.”
Jones says that Ember expects “little change in overall fossil generation, but with a small rise in coal and a fall in gas” in 2026. He adds:
“This would maximise gas-to-coal switching globally outside of the US, leaving no possibility for further switching in future years. Therefore, the big story isn’t about a coal comeback. It’s about how the relative economics of renewables, compared to fossil fuels, have been given a superboost by the crisis.”
The post World ‘will not see significant return to coal’ in 2026 – despite Iran crisis appeared first on Carbon Brief.
World ‘will not see significant return to coal’ in 2026 – despite Iran crisis
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