This year’s record-breaking typhoon season in the Philippines – which saw six consecutive storm systems hit the country in under a month – was “supercharged” by climate change, according to a rapid attribution study.
The Philippines is one of the most vulnerable countries in the world to extreme weather. Between late October and mid November 2024, the country was hit by a barrage of storms, starting with severe Tropical Storm Trami on 22 October, and ending with Tropical Storm Man-Yi which made landfall on 16 November.
“Typhoon” is the term used to describe a tropical cyclone – a tropical storm with wind speeds of at least 33 metres per second – that forms in the north-west Pacific. (If a tropical cyclone forms in the Atlantic Ocean or north-eastern Pacific Ocean, it is called a hurricane.)
Even for a disaster-prone country, such rapid “clustering” of typhoons was “unprecedented”, one Filipino expert told a press briefing.
By the end of November 200,000 individuals were displaced across six regions – many of whom had been forced from their homes multiple times in just one month.
The World Weather Attribution (WWA) service finds that climate change has exacerbated the conditions that enabled these powerful storms to form in the Philippine Sea, such as warm seas and high humidity.
Of the six major storms that hit the Philippines between the end of October and middle of November this year, three made landfall as “major typhoons” with wind speeds above 50 metres per second (112 miles per hour). This is 25% more likely to happen in today’s climate than it would have been in a pre-industrial world without human-caused warming, the study finds.
The typhoons “highlight the challenges of adapting to back-to-back extreme weather events”, the study says. The authors add that “repeated storms have created a constant state of insecurity, worsening the region’s vulnerability and exposure”.
‘Unprecedented’ typhoon season
On 22 October 2024, severe Tropical Storm Trami made landfall on the Filipino island of Luzon – the country’s largest and populous island. The storm rapidly dumped one month’s worth of rain over parts of the island, with floods sweeping the country.
However, the residents were given little time to recover. Just days after Storm Trami subsided, the Philippines was hit by Super Typhoon Kong-Rey. More than nine million people were affected by the two storms and almost 300,000 displaced.
As the weeks progressed, the Philippines was hit by Typhoon Yinxing, Typhoon Toraji and Typhoon Usagi. Finally, Tropical Storm Man-Yi made landfall on 16 November, marking the end of the record-breaking month.
Afrhill Rances works at the Asia-Pacific regional office of the International Federation of Red Cross and Red Crescent Societies, and is an author on the WWA study. She told a press briefing that, even for a disaster-prone country, the rapid “clustering” of typhoons in 2024 was “unprecedented”.
Dr Claire Barnes – a research associate at Imperial College London’s Grantham Institute and an author on the study – added that in the Philippines, “in November we would expect to see only three named storms in the entire basin at any point, with only one of those reaching super typhoon status”. A super typhoon is defined as any typhoon with winds above 58 metres per second (130 miles per hour).
The back-to-back storms formed so rapidly that November saw four named storms forming in the Pacific basin simultaneously. Japan’s meteorological agency said this was the first time in seven years – and the first November in recorded history – where four named storms have formed in the Pacific at the same time.
Typhoon intensity
Typhoons are complex events, which can be intensified by climate change in many different ways, including their rainfall intensity, storm surge height and wind speed.
The authors of this study focus on a metric called “potential intensity”, which looks at temperature, humidity levels and sea level pressure over the Philippine Sea where the typhoons formed.
Ben Clarke, a study author from the Centre for Environmental Policy at Imperial College London, told the press briefing that potential intensity indicates the “theoretical maximum intensity for a tropical cyclone”. He explains that the metric is “based on the conditions in the atmosphere and the ocean which are crucial for cyclone development”.
The map below shows the average potential intensity of the Philippine Sea between September and November 2024, where red indicates high potential intensity and blue indicates low potential intensity.
The dotted lines show the tracks of different storms. The black square indicates the study area. Potential intensity is calculated as the potential wind speed of the typhoon in metres per second.
To put this year’s record-breaking typhoon season into its historical context, the authors analysed a time series of average potential intensity in the Philippine Sea, using an observational reanalysis dataset stretching back to the year 1940.
The study says:
“Our best estimate is that the observed potential intensity has become about 7 times more likely and the maximum intensity of a potential typhoon has increased by about 4 metres per second.”
The authors also carried out attribution analysis to assess whether the increase in potential intensity can be linked to human-caused climate change.
Attribution is a fast-growing field of climate science that aims to identify the “fingerprint” of climate change on extreme-weather events, such as heatwaves and droughts. To conduct attribution studies, scientists use models to compare the world as it is today to a “counterfactual” world without human-caused climate change.
The authors find that the potential intensity in the Philippine Sea in 2024 was 1.7 times higher than it would have been in a world without climate change. They add that the maximum potential intensity of a typhoon has increased by about 2 metres per second due to climate change.
(These findings are yet to be published in a peer-reviewed journal. However, the methods used in the analysis have been published in previous attribution studies.)
Landfall
Climate change is exacerbating the conditions needed for tropical cyclones to form. However, tropical cyclones are still fairly infrequent and there is a “short period of reliable observations” of tropical cyclones that make landfall, according to the study.
This can make it challenging for scientists to assess the impact of climate change on the frequency of tropical cyclones using traditional methods.
To address this problem, researchers from Imperial College London developed a “synthetic tropical cyclone dataset” called IRIS earlier this year. This dataset uses observations from 42 years of observed tropical cyclones to create a “10,000-year synthetic dataset of wind speed”.
The database includes millions of synthetic tropical cyclone tracks. Each track maps the wind speed of the tropical cyclone from its formation to its landfall, to describe how its power changes throughout its lifetime.
The team has already used this method to attribute the extreme winds of Typhoon Geami and Hurricane Beryl, which hit China and Jamaica, respectively, earlier this year.
Of the six major storms that affected the Philippines in the month-long period, three made landfall as “major typhoons”, according to the WWA. The authors define a major typhoon as a category three or above, indicating sustained wind speeds above 50 metres per second.
Using the IRIS dataset, the authors assessed how likely it is for three typhoons to make landfall in the Philippines in a single year under different warming levels. They find that in today’s climate – which has already warmed by 1.3C as a result of climate change – the Philippines could expect three major typhoons to make landfall in a single month roughly once every 15 years. This is 25% more frequent than in a world without climate change.
They add that if the planet warms to 2C above pre-industrial temperatures, “we expect at least three major typhoons hitting in a single year every 12 years”.
‘Supermarket of disasters’
The Philippines is one of the most vulnerable countries in the world to extreme weather events and natural disasters, and is already facing deadly impacts from climate change.
The country’s location in the Pacific ocean makes it highly vulnerable to typhoons, volcanoes and earthquakes. The WWA study adds that the country “is experiencing sea level rise more than three times faster than the global average”. And the Philippines is facing deadly heatwaves, which have been made more intense as a result of climate change.
Rances told the press briefing:
“In the Red Cross we call the Philippines a ‘supermarket of disasters’, because you name it – we have it.”
The Philippines is struck by more typhoons every year than almost any other country in the world. It has “gradually shifted its approach from reactive to proactive risk management with a significant focus on preparedness and resilience building”, according to the World Bank.
For example, warning and pre-emptive evacuation orders were sent out ahead of many of the typhoons this year. Schools, ports and airports were closed in many regions. And disaster response teams were mobilised.
However, the unrelenting barrage of typhoons this year overwhelmed many of the country’s disaster preparedness systems, exhausting supplies and overstretching emergency responders. It also left communities with little time between storms to recover and prepare.
The United Nations Office for the Coordination of Humanitarian Affairs estimates that, at the end of November 2024, more than 200,000 individuals were displaced across six regions, hundreds of fatalities and injuries had been reported and more than 250,000 homes had been damaged. The damage to livestock, agriculture and infrastructure was estimated to be around $47m at the end of November.
The Filipino government spent more than $17m on food and other aid for the hundreds of thousands of storm victims. It has also sought help from neighbouring countries, the US and the United Nations.
The consecutive typhoons “highlight the challenges of adapting to back-to-back extreme weather events”, the study says. It adds:
“With 13 million people impacted and some areas hit at least three times, repeated storms have created a constant state of insecurity, worsening the region’s vulnerability and exposure.”
The authors warn that “major investment is needed to help the Philippines adapt to extreme weather”.
The post Record-breaking Philippines typhoon season was ‘supercharged’ by climate change appeared first on Carbon Brief.
Record-breaking Philippines typhoon season was ‘supercharged’ by climate change
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
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/
U.S. DOE Reveals $1B Funding to Boost Critical Minerals Supply Chain
DeBriefed 15 August 2025: Raging wildfires; Xi’s priorities; Factchecking the Trump climate report
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