@compoundnet.bsky.social's new "State of the Science" mini-blog series: a fully human summary of recent advances & current frontiers for compound events, hopefully of special value for ECRs. The first edition, on heat & humidity extremes, is live at bit.ly/4buNAL6. Many thx @afsribeiro.bsky.social!

Heat and Humidity Extremes (covering years 2023-26)

State of the Science Blog by Colin Raymond (UCLA) The last few years have seen considerable progress toward identifying the atmospheric processes that control the most intense humid-heat episodes1,…

compoundevents.org

It's got hurricanes. It's got turtles. It's got a turtle-based hurricane observing system. Now with "all weather capability" 🐢🌀 In-situ oceanographic observations of tropical cyclones from instrumented sea turtles Chapman ERL iopscience.iop.org/article/10.1...

"Every El Niño is different in terms of timing, magnitude, and geographic extent, and such differences lead to variability in the impacts—on temperatures and rainfall, for example—on a global scale," says @wxpizza.bsky.social of @ncdp.bsky.social. Via ABC News. https://bit.ly/44Ocvpr

El Nino is strengthening: Here's what it means for the US

El Nino conditions continue to intensify and are likely to be a strong event in the coming months, significantly influencing our weather.

bit.ly

Given likelihood of El Niño's rapid strengthening and extreme weather events, now is the time to ready financing, human resources, and logistics to support the most vulnerable, writes expert @wxpizza.bsky.social of Red Cross Red Crescent Climate Centre & @ncdp.bsky.social. https://bit.ly/4vprVLG

El Niño is here. @climate.columbia.edu professor/@ncdp.bsky.social faculty director @jeffschlegel.bsky.social and NCDP climate scientist @wxpizza.bsky.social explain why that’s a head start, not just a headline. Learn more: https://bit.ly/4v3kFoc

Impact Outlook: El Niño 2026–27 - National Center for Disaster Preparedness | NCDP

El Niño Is Here. Here’s Why That’s a Head Start, Not Just a Headline. The equatorial Pacific Ocean now reflects El Niño conditions. Forecasters expect it to keep building through the rest of 2026, mos...

bit.ly

“A flood means we need to be close to a river—that’s how we’ve been trained to think. But you don’t need a riverbed; you don’t need a coastline,” says @ncdp.bsky.social's @wxpizza.bsky.social. All you need is rain. And that can happen almost anywhere. Via @theatlantic.com. https://bit.ly/4vzBw3k

The 10,000-Year Flood

The banks of the Guadalupe River were an idyllic spot to park an RV. Then, last summer, it started to rain harder and faster than anyone could imagine.

bit.ly

"Every El Niño is different in terms of timing, magnitude, and geographic extent, and such differences lead to variability in the impacts—on temperatures and rainfall, for example—on a global scale," says @wxpizza.bsky.social of @ncdp.bsky.social. Via ABC News. https://bit.ly/4gr1ykj

El Nino returns, likely will intensify into a strong event this year, NOAA says

El Nino conditions are expected to strengthen in the coming months, bringing potentially significant impacts, the National Oceanic and Atmospheric Administration said.

abcnews.com

🤔 You Asked: What Exactly Is a ‘Super’ El Niño? 💡 Columbia Climate School experts Muhammad Azhar Ehsan, Mingfang Ting, @wxpizza.bsky.social, and climate reporter Tracy Wholf explain what a strong El Niño could mean for the planet this year: https://bit.ly/4ofr5im

As El Niño forecasts have grown more accurate, humanitarian groups, governments, companies, farmers have become more adept at preparing, though the most vulnerable may not have access to all of the info they need, says @wxpizza.bsky.social of @ncdp.bsky.social. Via @cnn.com. https://cnn.it/49fQt1q

What previous Super El Niños can tell us about the next one | CNN

The coming “Super” El Niño is poised to affect the lives of hundreds of millions of people worldwide as it strengthens into winter.

cnn.com

How should climate information be translated into useful decisions before disaster strikes? Climate scientist @wxpizza.bsky.social of Red Cross Red Crescent Climate Centre and @ncdp.bsky.social joins @outrageoptimism.bsky.social to explore what climate preparedness looks like. 🎙️ bit.ly/419gevQ

"Every El Niño is different in terms of timing, magnitude, and geographic extent, and such differences lead to variability in the impacts—on temperatures and rainfall, for example—on a global scale," says expert @wxpizza.bsky.social of @ncdp.bsky.social. Via ABC News. https://bit.ly/47AF5fx

El Nino is likely to return this year, but its strength and impacts remain uncertain

El Niño is likely to return this year, but its strength and impacts remain uncertain.

bit.ly

Climate scientist @wxpizza.bsky.social of @ncdp.bsky.social is watching how forecasters factor AI predictions into public storm warnings. "Even if models are considered better or high quality, decision-making is not necessarily simplified," he says. Via @bloomberg.com. https://bloom.bg/401O6dt

AI Lost Out to Traditional Models in Forecasting NYC's Blizzard

Two days before New York's biggest snowstorm in a decade began, forecasters were still unsure how much snow would fall. One traditional US model had consistently predicted a major hit, while newer art...

bloomberg.com

Will AI weather models lead to better & faster extreme weather warnings? @wxpizza.bsky.social is watching how forecasters prioritize AI predictions before issuing public warnings about incoming storms. More models don't always mean enhanced decision-making. ow.ly/RWMj50YlyfC @bloomberg.com

AI Lost Out to Traditional Models in Forecasting NYC's Blizzard

Two days before New York's biggest snowstorm in a decade began, forecasters were still unsure how much snow would fall. One traditional US model had consistently predicted a major hit, while newer art...

ow.ly

As part of its Moonshot Goal 8 Program, scientists address the question: Is it possible to tame river flooding? @wxpizza.bsky.social weighs in on this debate in a French article in @lesechosfr.bsky.social. www.lesechos.fr/idees-debats...

As global temps appear likely to surpass Paris Agreement's 1.5°C target by 2050, governments and aid organizations aren't prepared for what this "climate overshoot" will mean for people and societies, warn NCDP's Andrew Kruczkiewicz, AC4's Joshua Fisher, and colleagues: https://bit.ly/3Xs23jK

Freezing rain is "by far the most dangerous" form of precipitation. When rain freezes on & around surfaces, that could mean cars are encapsulated in ice. Bridges & roadways can also accumulate & freeze over puddles, noted @wxpizza.bsky.social. ow.ly/TqyJ50Y2TYu @axios.com @climate.columbia.edu

How to prepare for "rare," "dangerous" ice expected from this weekend's storm

This weekend's storm looks to have major impacts from both snow and ice from Texas all the way to New England.

ow.ly

Places are seeing disasters they aren’t used to, extreme events are intensifying faster, and they are becoming more complex. That requires earlier warnings & new approaches to response and recovery, noted @wxpizza.bsky.social. ow.ly/tKnL50XSqQv @climate.columbia.edu @apnews.com

2025 was one of three hottest years on record, scientists say

Climate change worsened by human behavior made 2025 one of the hottest years ever recorded. Also, the three-year warming average has crossed the threshold of 1.5 degrees Celsius (or 2.7 Fahrenheit) si...

ow.ly

✨ In 2025, we welcomed Alexis Abramson as our new dean, celebrated our graduating class of leaders, launched the first MS in Climate Finance in the US, all working to build a more just, sustainable future for our planet. 🦋 State of the Planet shares these 2025 highlights: https://bit.ly/3MSgjAh

The findings feature in a @esa.int –led study, published this week in npj Climate and Atmospheric Science to coincide with #COP30 Read the full study: www.nature.com/articles/s41... Read the news story: www.universityofgalway.ie/about-us/new...

Satellite-based Earth observation provides a unique and powerful tool in tracking climate adaptation, an international study involving University of Galway researchers has shown.
🔭👀🌍

Earth observations for climate adaptation: tracking progress towards the Global Goal on Adaptation through satellite-derived indicators ->Nature | More from Lil Dr Glen EcoChat at BigEarthData.ai

Earth observations for climate adaptation: tracking progress towards the Global Goal on Adaptation through satellite-derived indicators

As climate change impacts are unfolding at greater speed, frequency and intensity, climate adaptation has become a necessary strategy for preventing degradation, averting disasters, and continuing improvement in the quality of life worldwide. The need for further action was acknowledged...

nature.com

Climate overshoot has huge implications for where we live, how we get our food, & our quality of life, yet despite these potentially cataclysmic shifts, there has been little work done on the human implications of this world, noted @wxpizza.bsky.social. ow.ly/5i6e50XQ4gV @climate.columbia.edu

We’re passing a dangerous global warming threshold — but we can't give up

Paris' major climate target has been dead for years. Now, people are finally acknowledging it. What do we do next?

ow.ly

2025 was a historic year - making headlines for disastrous wildfires, catastrophic floods in TX, and deadly heatwaves in Europe and Asia. Read the top stories that shaped the State of Our Planet. @climate.columbia.edu @wxpizza.bsky.social news.climate.columbia.edu/2025/12/22/y...

Year in Review: Our Top Stories of 2025

A look back at the stories and videos that shaped our year at State of the Planet.

news.climate.columbia.edu

It is becoming increasingly irresponsible to focus solely on the physical modeling elements of overshooting [2.7°F/1.5 °C of warming]. We need to start thinking about what the [human] scenarios look like for a post-1.5 °C world. @wxpizza.bsky.social. ow.ly/I3G850XNaTY @climate.columbia.edu @vox.com

We’re passing a dangerous global warming threshold — but we’re not doomed

This major climate target has been dead for years. Now, people are finally acknowledging it.

ow.ly

What happens when the world gets too hot for too long? Researchers at several institutions argue that climate overshoot will reshape risks for societies long before temperatures drift back down. ow.ly/F7za50XxEUV @wxpizza.bsky.social @climate.columbia.edu

Climate overshoot: What happens when the world gets too hot for too long?

Passing 1.5 degrees will hurt people more. It shows how climate overshoot increases risks for food, health, cities, and fragile communities.

ow.ly

The study is on "The human and social impacts of climate overshoot" - but the world is home to millions of other species that will also be severely impacted academic.oup.com/pnasnexus/ar...

Earth.com@earthdotcom.bsky.social · 9mo ago

Climate overshoot: What happens when the world gets too hot for too long? #EarthDotCom #EarthSnap #Earth

It seems increasingly likely that the world will overshoot the Paris Agreement’s aspirational goal of 1.5°C of global mean temperature rise. A Perspective calls for research on the social and humanitarian impacts of climate overshoot. In PNAS Nexus: https://ow.ly/hNhX50Xx2pq

The next @riskkan.bsky.social Compound Events webinar will be Tues 2 Dec at 11am UTC with a presentation from Xinyue Liu (NUS) on "Climate signals behind synchronized locust outbreak risks". For Zoom info: groups.google.com/u/1/g/riskka... or message @regclimo.bsky.social

... with the cost of doing nothing potentially creating tensions with the humanitarian principle of ‘do no harm', noted @wxpizza.bsky.social.

✨ Societies are unprepared for the human costs of climate overshoot. Understanding how overshoot will affect people’s lives and livelihoods—before, during, and after disasters—must be part of climate planning, policy, and finance. ow.ly/L4LI50XtxVr @climate.columbia.edu

Societies Are Unprepared for the Human Costs of Climate Overshoot

While scientists have made progress describing overshoot’s physical impacts, its humanitarian and social consequences need greater focus, say the authors.

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