Connect with us

Published

on

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.

Average potential intensity in the Philippine Sea over September-November 2024, using ERA5 data. Source: WWA (2024).
Average potential intensity in the Philippine Sea over September-November 2024, using ERA5 data. Source: WWA (2024).

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.

Families seeking shelter at the Bagong Silangan Evacuation Center, Philippines, due to the expected flooding in low-lying areas caused by Super Typhoon Man-yi, local name Pepito, on 17 November 2024. Credit: Imago / Alamy Stock Photo. Image ID: 2YKBK68
Families seeking shelter at the Bagong Silangan Evacuation Center, Philippines, due to the expected flooding in low-lying areas caused by Super Typhoon Man-yi, local name Pepito, on 17 November 2024. Credit: Imago / Alamy Stock Photo.

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

Continue Reading

Climate Change

When taps run dry in the Caribbean, it’s not enough to blame El Niño

Published

on

Amira Odeh Quiñones is a hydrologist and Caribbean organiser for the 350.org climate campaign group

El Niño, likely to be one of the strongest in modern history, has arrived on Caribbean shores.

Drought is slowly creeping up on our islands. But unlike the fiery wildfires ravaging parts of Europe, there’s no smoke signalling the damage being done, no sirens to warn of the danger. Only announcements from public health officials to stay indoors and remain hydrated — as if outdoor workers and farming communities have the luxury to heed such advice.

During El Niño, strong atmospheric winds alter rain patterns and trap heat across the Caribbean. But while we have experienced El Niño many times before, it has become very visible in recent years how climate change is making this natural phenomenon worse.

Across the Greater Antilles, temperatures are soaring past 38°C (100°F), with real-feel indexes reaching a gruelling 43°C in parts of Puerto Rico where I live. Cuba has it worse. Widespread power outages mean that methods for cooling down are unavailable for most of the day, leaving millions of vulnerable people at risk of heat stroke when temperatures hit 38°C.

Santa Marta coalition tested as co-chair Colombia turns back to fossil fuels

During the last strong drought a decade ago, I had water only two days a week in my home. Today, there are many families whose taps are about to run completely dry. Water authorities have already begun strict rationing in some municipalities, with more on the list scheduled for rationing if conditions don’t change.

Water rationing is far more than an inconvenience; it is an immediate health risk. This means thousands of people need to constantly haul heavy buckets up flights of stairs just so they could bathe, cook, stay hydrated – the basics of survival.

Heat causes health problems

Puerto Rico is home to roughly 300,000 elderly residents. Many live alone, isolated and without support. They risk severe physical injury when carrying heavy water containers, and are wont to suffer from silent heat exhaustion in unventilated rooms.

Furthermore, when water shortages force residents to store water in open household containers, it inadvertently creates breeding grounds for Aedes aegypti mosquitoes. Paired with scorching temperatures that tend to shorten the mosquito breeding cycle, the region is facing explosive outbreaks of dengue fever that endanger our most vulnerable: children and the elderly.

The economic fallout is equally devastating. Dry fields mean millions of dollars in lost crops, forcing small agricultural businesses to collapse, needing urgent government relief to survive. Extreme fuel shortages have already paralyzed Cuba’s agricultural sector, cutting food output by 60% – the El Niño dry spell threatens to decimate it.

At sea, warmer ocean waters fuel massive influxes of sargassum seaweed. Rotting sargassum chokes our beaches, destroying the local tourism industry that so many working families rely on. Tangled seaweed also damages nets and boat engines, slashing fish catches and driving up equipment costs for local fishers.

In the south of Puerto Rico, the coastal town of La Parguera is currently witnessing a historic amount of sargassum on its shores. This has halted most of the boating activity in the area, which is the seaside town’s main tourist draw and economic driver.

All over the Caribbean, from town halls to local group gatherings, the story I hear is always the same: constant headaches, lost work hours, failing health, and a sense that quality of life is silently being stolen. The compounding effects of heatwaves, drought, and marine destruction are exhausting our people, our islands.

Climate change to blame

Climate change makes each El Niño year hotter and more damaging. Higher baseline global temperatures increase the energy and moisture available for extreme weather. Latest projections show that El Niño may push the monthly global average temperature past 2°C of warming for the first time in early 2027. In the Caribbean islands, that will not just be breaking records – it’ll be breaking lives.

Recently, I had the opportunity to share a panel with climate scientists behind what is known as the field of “attribution science” – or the science that compares today’s climate conditions to what the Earth’s climate would be like without human activity, particularly burning fossil fuels. They’re unequivocal: it’s no longer a question of whether extreme weather is caused by climate change, it’s just a question of how much.

    Attribution science recently got a boost from the U.S.’ top scientific advisory body. The National Academies of Sciences, Engineering and Medicine recognized that researchers’ methods have advanced considerably in recent years, resulting in better assessments on how much extreme weather can be attributed to human-caused climate change. It noted that attribution findings could be relevant in some types of legal cases, including those seeking damages from oil companies for climate impacts.

    This crisis, which is already taking a heavy toll on our communities’ survival, needs real, urgent, and structural action that goes beyond aid. With similar droughts now gripping parts of Asia and Africa, we’re falling into the familiar narrative of treating the looming humanitarian crisis as if no one was to blame, as if it is being caused solely by a natural phenomenon we can’t control.

    It’s not. The world was already on fire before its regular visitor, El Niño, came. While we need humanitarian action, we need climate action too, in order to permanently put out the flames.

    The post When taps run dry in the Caribbean, it’s not enough to blame El Niño appeared first on Climate Home News.

    When taps run dry in the Caribbean, it’s not enough to blame El Niño

    Continue Reading

    Climate Change

    Q&A: What is in China’s new five-year plan for climate change?

    Published

    on

    China has released a five-year plan dedicated to addressing climate change.

    The 15th five-year plan for a national response to climate change is the latest in a series to outline in-depth climate and energy targets for the 2026-2030 period.

    These include five-year plans for “building a Beautiful China”, developing a “new-type energy system” and developing renewable energy.

    There are also separate “action plans” for the 2026-2030 period, such as for peaking carbon emissions

    China has pledged to peak its emissions before 2030 and reach carbon neutrality before 2060.

    The new plan does not include any major new targets, instead consolidating and reaffirming existing policies.

    Nevertheless, it includes significant signals on key policy areas, such as non-carbon dioxide (CO2) greenhouse gases, global climate governance and carbon markets.

    Below, Carbon Brief examines some of the notable elements in the latest five-year plan and what it reveals about China’s policy direction through to 2030.

    What does the climate plan cover?

    The Ministry of Ecology and Environment (MEE) released the plan in late July, in unison with 18 other government departments. These include the National Development and Reform Commission (NDRC), China’s top economic planning agency, and the National Energy Administration.

    The document covers a range of topics, including CO2 emissions, other greenhouse gases (non-CO2 GHGs), carbon markets, carbon footprints, climate adaptation and international cooperation on climate change.

    For the first time at the five-year plan level, the plan creates a comprehensive target system covering all areas of climate policy, say officials in a MEE Q&A.

    They describe it as “the main policy instrument” for advancing China’s climate action during 2026-2030.

    China rarely issues high-level multi-year policies dedicated to “responding to climate change”. In 2014, the NDRC published a plan on the topic running through to 2020, but this was not linked to a five-year plan period.

    Qin Yan, principal analyst at ClearBlue Markets, tells Carbon Brief that the plan shows that China’s climate governance has reached “an unprecedented strategic level”.

    She adds that the plan creates an “all-encompassing target system” to support China’s Paris Agreement climate pledges for 2030 and 2035.

    In its 2030 pledge, China aimed to peak emissions “before 2030” and reduce carbon intensity – its emissions per unit of GDP – by more than 65% from 2005 levels.

    Last year, president Xi Jinping personally announced China’s 2035 pledge to cut China’s greenhouse gas emissions to 7-10% below peak levels by 2035, while “striving to do better”.

    The five-year plan marks a new phase in China’s climate policy, according to researchers at CIB Research, an economic research body affiliated with the Industrial Bank, whose largest shareholder is the Fujian provincial government.

    Their analysis adds that the plan represents a broad effort to strengthen China’s climate-governance system, implementation mechanisms and underlying capacity.

    Nevertheless, several headline targets and policies in the document simply reiterate already established plans.

    These include:

    • Cutting carbon intensity by 17% across the five years
    • Reducing carbon intensity per product in industries under China’s carbon market by 3%
    • Substituting fossil fuels with renewables
    • Strengthening climate adaptation
    • Supporting the “free flow” of cleantech

    What does the plan say about non-CO2 GHGs?

    The plan also goes into detail on China’s approach to non-CO2 GHGs. This includes reaffirming a target of an emissions “reduction capacity” from these gases totalling 30m tonnes of CO2 equivalent (MtCO2e) by 2030, although the baseline is unclear.

    The target previously appeared in the overarching five-year plan, as well as the plan for building a “Beautiful China”.

    The goal refers to emissions reductions, which can be realised through implementing current non-CO2 emissions reduction policies and projects, says Chen Meian, programme director and senior analyst at the Institute for Global Decarbonization Progress (iGDP). 

    She adds that it is “relatively achievable”, with sources including increasing the number of coal-mine methane utilisation projects.

    She points to an MEE explanatory note for a draft methodology under the China Certified Emission Reduction (CCER) scheme, China’s voluntary carbon-credit market. Chen says the note suggests that projects using ventilation air methane and coal-mine methane with concentrations below 8% alone could deliver around 20MtCO2e of reduction by 2030.

    The note states that, currently, such projects are estimated to be able to “generate annual emission reductions of approximately 4.5MtCO2e”.

    In addition, Chen says, measures targeting industrial nitrous oxide (N2O) and hydrofluorocarbons (HFCs) could help make up the remainder needed to meet the target.

    According to iGDP analysis of biennial reports submitted by China to the UNFCCC, China emitted around 14,000MtCO2e of GHGs in 2021, excluding land use, land-use change and forestry (LULUCF).

    Non-CO2 GHGs accounted for around 2,700MtCO2e, or 19%, of the total, the majority of which was methane, as shown in the figure below.

    Methane is China’s main source of non-CO2 greenhouse gas emissions. Emissions by gas, MtCO2e. Stacked bar chart from 2005 to 2021 showing total emissions rising to over 2,700 MtCO2e. Methane consistently accounts for the largest share, followed by Nitrous Oxide and F-gases. Source: iGDP analysis of China’s first Biennial Transparency Report and fourth Biennial Update Report - (alt text generated by Google Gemini)
    iGDP analysis of China’s first Biennial Transparency Report and fourth Biennial Update Report.

    China’s plans to curb these super-pollutants in the five-year period include coal-mine methane utilisation projects, end-of-pipe destruction technologies for HFCs and guidance on the use of catalysts to reduce N2O emissions.

    The plan also calls for the recovery and replacement of sulphur hexafluoride (SF6) in power equipment.

    For Chen, the plan’s focus on SF6 control is particularly noteworthy. She says the gas is “finally receiving policy attention” and that proactive action is “timely and will help avoid future emissions growth” as China’s power system expands.

    What does the plan say about global climate governance?

    One of the plan’s clearest objectives for international cooperation is for China to play a more active role in global climate governance.

    By 2030, it says China should markedly increase its “influence, guiding power, shaping power and moral appeal” in this area.

    It says China’s climate action could also feed into the Global Governance Initiative, a policy initiative aimed at reforming the global governance system.

    China will also aim to “build a new narrative on climate governance”, it adds.

    Prof Thomas Hale, a professor in public policy at the University of Oxford’s Blavatnik School of Government, writes on LinkedIn that the plan “marks a major rhetorical shift” towards China being increasingly willing to “lead and shape” global climate action.

    Another clear focal point for international cooperation is in carbon markets.

    The plan calls for China to expand the global influence of its carbon market, such as through international rule-setting, cooperation on standards and by hosting the China Carbon Market Conference.

    Qin says China’s more active role in global carbon pricing is already evident in the launch of the open coalition on compliance carbon markets with the EU and Brazil. This coalition is expected to adopt a work plan at the China Carbon Market Conference in September.

    Qin also notes that China “could become the world’s largest [carbon] offset buyer” as its energy transition progresses.

    The country would, therefore, “benefit from helping shape global rules under the Article 6 framework [for carbon trading under the Paris Agreement]”, she adds.

    The post Q&A: What is in China’s new five-year plan for climate change? appeared first on Carbon Brief.

    Q&A: What is in China’s new five-year plan for climate change?
    Continue Reading

    Climate Change

    Quarter of countries still missing UN climate plans 18 months after deadline

    Published

    on

    About a quarter of the countries signed up to the Paris Agreement are still breaching its rules by failing to submit a new national climate plan, 18 months after the February 2025 deadline.

    Forty-five nations had not submitted a plan known as a nationally determined contribution (NDC), according to the Paris Agreement Implementation and Compliance Committee’s (PAICC) newly-published report of its 7-10 July 2026 meeting. One, Oman, has published it since the meeting.

    Twelve countries ignored the committee’s repeated attempts to find out why they had not yet produced a climate plan, the report said. They will be invited to the committee’s next meeting, from September 1-4, so it can identify the challenges and constraints they face.

    Members of the committee are divided, as they were at their last meeting, on whether to name those countries publicly and will debate the question again in September.

    The PAICC does not have any power to punish governments, as building these powers into the Paris Agreement was thought to be so controversial that it could have stopped some governments from joining, experts have previously told Climate Home News.

    A key requirement of the landmark 2015 Paris Agreement is that governments publish a more ambitious NDC every five years, setting targets to reduce their planet-heating emissions and outlining their policies to adapt to climate change, in order to meet the accord’s goals on limiting global warming and protecting people from its effects.

    The latest set – the third round of plans, with new targets for 2035 – was due in 2025.

    Some medium-sized emitters

    Countries without an updated NDC include Egypt, Vietnam, Argentina and the Phillippines, all of which rank among the world’s 40 largest greenhouse gas emitters. The rest of the countries are smaller, poorer nations, with many in Africa or the Caribbean.

    Some nations have argued that they cannot put together an NDC – which requires a significant amount of work in tracking emissions and consulting on how to curb them across the economy – because of exceptional circumstances. For example, a letter from a Sudanese official to the PAICC committee, seen by Climate Home News, says that the country’s civil war has led to the suspension of its NDC preparation.

      The US and Iran are not signed up to the Paris Agreement, although the US submitted a 2035 NDC under the Biden administration before Donald Trump pulled the US out of the UN climate accords.

      The committee also expressed concern that the UN’s NDC registry continued to label the climate plans of countries that are no longer party to the Paris Agreement as “active”, according to its report. The US submission has since been archived.

      Since the last PAICC meeting in March, ten countries have published NDCs. The committee did not name them but they include India, Algeria, Cameroon and Guyana.

      The post Quarter of countries still missing UN climate plans 18 months after deadline appeared first on Climate Home News.

      Quarter of countries still missing UN climate plans 18 months after deadline

      Continue Reading

      Trending

      Copyright © 2022 BreakingClimateChange.com