World Weather Attribution

NEW: Climate change is influencing many of the likely drivers behind the devastating rock and ice collapse on the northern Nepalese border last month. 🧵👇(1/6)

@bennethclarke.bsky.social said the "fingerprints of climate change are clear to see in these long-term changes." “While this is a complex event, our analysis brings together scientists with a diverse range of expertise to set out the factors that likely contributed to this catastrophe." (5/6)

NEW: Climate change is influencing many of the likely drivers behind the devastating rock and ice collapse on the northern Nepalese border last month. 🧵👇(1/6)

Geological factors are also likely to have played a role. A 7.8 magnitude earthquake in 2015 is likely to have further preconditioned the slope for collapse, and potentially opened new cracks for meltwater ingress. (3/6)

NEW: Climate change is influencing many of the likely drivers behind the devastating rock and ice collapse on the northern Nepalese border last month. 🧵👇(1/6)

A team of WWA scientists and glaciologists found that the collapse was a compound disaster with climate change worsening factors including glacial thinning, melting permafrost and meltwater ingress - with the freezing line (0C isotherm) rising by about 100m per decade (2/6)

🌊 Climate change is causing European sea surface temperatures to surge: marine ecosystems are suffering 🌊 World Weather Attribution scientists analysed the record-breaking SSTs in Europe’s waters in July. They found that the event was primarily driven by climate change. (1/5)

Prof. Friederike Otto said: “Our seas are heating at a rate that is outpacing global warming averages, with direct consequences for life on land as well as at sea. By delaying the inevitable shift away from fossil fuels, we’re pushing many ocean ecosystems closer to extinction.” (4/5)

🌊 Climate change is causing European sea surface temperatures to surge: marine ecosystems are suffering 🌊 World Weather Attribution scientists analysed the record-breaking SSTs in Europe’s waters in July. They found that the event was primarily driven by climate change. (1/5)

Europe's marine heatwaves reached 6°C above normal this summer and the impacts are severe: declining species, ecosystems shifting, fisheries & aquaculture disrupted. Warmer seas also drive coastal humidity, increasing the risks of extreme heat on land. (2/5)

Devastating floods in Assam were worsened by human factors - but not necessarily climate change. WWA scientists analysed the recent monsoon downpours that resulted in floods that killed at least 99, displaced hundreds of thousands and inundated tens of thousands of hectares of cropland. (1/4)

Read the full analysis here: www.worldweatherattribution.org/flood-impact... Photo on the previous post: Facebook/CMO Assam. (4/4).

Devastating floods in Assam were worsened by human factors - but not necessarily climate change. WWA scientists analysed the recent monsoon downpours that resulted in floods that killed at least 99, displaced hundreds of thousands and inundated tens of thousands of hectares of cropland. (1/4)

Human-induced climate change made the extreme fire weather that fuelled the recent destructive wildfires at least twice as likely in France and at least 20 times more likely in Spain, according to our new study.

In today’s climate, events of this intensity are expected to occur once every 20 years in southwestern France and once every six years in central Spain.

➡️ Climate change is driving drought in Europe - but not how you might expect. While there isn't a clear signal for climate change impacting the dry weather, extreme heat is sucking more moisture out of the landscape. (1/3)

As Dr. Sarah Kew, Climate Scientist at @knmi.nl says; “We are seeing water supplies evaporate out of our soils and rivers faster than we would have in a world without climate change, turning what would have been manageable dry spells into severe droughts. (2/3)

NEW: Climate change supercharged the rainfall that caused deadly flooding that killed almost 100 in Togo, Ghana and Cote d'Ivoire. The most extreme rainfall fell between June 20-22 across coastal regions with more than 140mm falling in less than 24 hours in some major cities. (1/5)

“This study is a clear example of the need for international cooperation on climate justice. Industrialised nations have a responsibility to help nations like Togo, Cote d’Ivoire and Ghana to adapt to a worsening problem that they didn’t cause.” (4/5)

NEW: Climate change supercharged the rainfall that caused deadly flooding that killed almost 100 in Togo, Ghana and Cote d'Ivoire. The most extreme rainfall fell between June 20-22 across coastal regions with more than 140mm falling in less than 24 hours in some major cities. (1/5)

Observations-based data shows us that rainfall intensity has risen by 23%, with events like this one now 5x more likely. Climate models-which historically struggle to replicate events like this in Global South regions-showed a smaller 4% increase in intensity and 20% increase in likelihood. (2/5)

🔥NEW: Our study finds the ongoing European heatwave would have been impossible without climate change (1/6)

🌎 El-Ni-no: El Nino was found to have played no role in the heat. (5/6)

🔥NEW: Our study finds the ongoing European heatwave would have been impossible without climate change (1/6)

🌡️ Both daytime and overnight temperatures would have been virtually impossible to occur as recently as 1976 - just 50 years ago. If this heatwave was happening back then, it would be 3.5°C cooler. (3/6)

🔥NEW: Our study finds the ongoing European heatwave would have been impossible without climate change (1/6)

NEW: An estimated 7% of the entire population of the critically-endangered Tapanuli Orangutan were killed in a single weather event, according to research led by Borneo Futures with @frediotto.bsky.social as an author. An estimated 58 Orangutans were killed by landslides during Cyclone Senyar (1/4)

- Attribution analysis shows that human-induced climate change increased the rainfall intensity by between 9 and 50%. @frediotto.bsky.social: “This study is a stark demonstration of how intertwined the crises of climate change and biodiversity loss are." (3/4)

NEW: An estimated 7% of the entire population of the critically-endangered Tapanuli Orangutan were killed in a single weather event, according to research led by Borneo Futures with @frediotto.bsky.social as an author. An estimated 58 Orangutans were killed by landslides during Cyclone Senyar (1/4)

NEW: Players and fans face increased heat danger at the 2026 FIFA World Cup, since USA '94. Our results show that from Miami to Kansas City, climate change is increasing the risk of playing the World Cup in much of the northern hemisphere during summer. (1/2)

RAPID ANALYSIS: It would be ‘virtually impossible’ for the record-breaking March heat currently scorching the U.S. West to occur without climate change. We are seeing summer-like temperatures arrive exceptionally early from the Pacific to the Rockies this week. 🧵1/4

Heat is the #1 weather-related killer in the U.S.. Early-season is especially dangerous because our bodies haven't acclimatised yet. As @frediotto.bsky.social puts it: "The seasons that people and nature were used to for centuries are disappearing...Our policy must catch up to this reality." (3/4)

RAPID ANALYSIS: It would be ‘virtually impossible’ for the record-breaking March heat currently scorching the U.S. West to occur without climate change. We are seeing summer-like temperatures arrive exceptionally early from the Pacific to the Rockies this week. 🧵1/4

We’re excited to announce that @frediotto.bsky.social has been awarded Germany’s highest honour for her groundbreaking work on climate science and extreme weather. The award recognises her pivotal role in revolutionising attribution science: connecting extreme weather events to climate change.

In receiving the award, @frediotto.bsky.social said: "I am deeply honoured to receive this recognition, but this award also belongs to my team. Science is a collaborative endeavour and the global impact of World Weather Attribution is a direct result of their tireless work and dedication too."

We’re excited to announce that @frediotto.bsky.social has been awarded Germany’s highest honour for her groundbreaking work on climate science and extreme weather. The award recognises her pivotal role in revolutionising attribution science: connecting extreme weather events to climate change.