E.P.A. to Stop Considering Lives Saved When Setting Rules on Air Pollution

😢 "the agency plans to calculate only the cost to industry when setting pollution limits, and not the monetary value of saving human lives, documents show."

For example, researchers at @ncar-ucar.bsky.social have developed tools that provide detailed weather guidance to pilots, dispatchers, air traffic controllers, and airport operators, including the wind shear alert system used at airports across the country.

📎📜 Paper on the climatology and drivers of extreme atmospheric ridges over western North America led by my postdoc (Dr. Xiaoyu Bai). Such ridges (or high-pressure systems) are often associated with a range of surface temperature and precipitation extremes
@siiribigalke.bsky.social

rdcu.be/eXGW5

Emergence of strong trends in humid heat intensity and duration in recent decades over South Asia Emergence of strong trends in humid heat intensity and duration in recent decades over South Asia, Singh, Jitendra, Singh, Deepti, Sippel, Sebastian, Fischer, Erich

🥵 📜 New paper on the emergence of trends in humid heat intensity and duration in recent decades over South Asia led by Dr. Jitendra Singh with @sebastian-sippel.bsky.social @erichfischer.bsky.social
doi.org/10.1088/2752... via @ioppublishing.bsky.social

What's NCAR? and 8 ways it has helped you

www.forbes.com/sites/marsha...

We're all at risk if Trump dismantles this legendary lab Breaking up the National Center for Atmospheric Research would be a "genuinely shocking self-inflicted wound."

“The research done at NCAR is an investment by every single tax-paying citizen in the United States, and it benefits all of us,” said UCS's @marc-alessi.bsky.social. “We are able to predict the weather days in advance, giving warning for hurricanes, extreme precipitation events, and droughts.”

It is hard to overstate how critical @ncar-ucar.bsky.social is to climate science in the US and around the world. It's the beating heart of our field. Generations of scientists have trained there, and almost everyone I know relies on deep collaborations with NCAR scientists. It's end is unthinkable.

Trump team plans to break up ‘global mothership’ of climate science Much of the National Center for Atmospheric Research’s non-climate portfolio will be dispersed, the White House says.

Here's our reporting on the proposed dismantling of the jewel of US atmospheric science, @ncar-ucar.bsky.social.

The plan is to break NCAR apart and disburse some parts to other locations (like the research aircraft fleet) and eliminate others.

www.nature.com/articles/d41...

🧪 #AGU25 #climate

This is not an exaggeration:
There is not a single weather forecaster, TV meteorologist, airline pilot, computer scientist, or climate scientist in the WORLD whose work or life wasn't directly or indirectly improved or influenced by the science done at NCAR.

www.usatoday.com/story/news/p...

100,000 Ordered to Evacuate as Rivers Rise in Washington State

100,000 Ordered to Evacuate as Rivers Rise in Washington State www.nytimes.com/2025/12/11/w...

Detection and attribution of the human influence on extreme weather and climate events doi.org/10.1088/2752... via @ioppublishing.bsky.social

Shoutout to Dmitri Kalashnikov, John Abatzoglou, Nicholas Nauslar, Daniel Swain, Danielle Touma and Deepti Singh for their fantastic study of California dry lightning patterns that helped with forecast confidence ahead of today’s lightning siege and associated wildfires.

Engrossing meeting of the minds at the workshop this week. Nine creative yet plausible storylines were developed and a whole range of new cxns made. Thanks again to all who attended, and especially those who made it happen. We're excited to see what this format & these ideas can catalyze!

Researchers Are Resurrecting Billion-Dollar Disaster Tool Trump Killed Nonprofit Climate Central has hired the scientist behind a key database of costly weather disasters to rebuild it.

Scoop: The U.S. billion-dollar disaster database is set to return this fall over at @climatecentral.org. They've hired the former NOAA scientist who ran the project for 10+ years www.bloomberg.com/news/article...

The Republican campaign to stop the U.S. EPA from protecting the climate » Yale Climate Connections An audacious effort to destroy climate regulations is likely headed for a showdown at the Supreme Court.

I read EPA’s 302-page proposal to nuke the endangered endangerment finding so that you don’t have to, and wrote about what the insanity all means for @climateconnections.bsky.social. Thanks to @gregdotson.bsky.social, @hausfath.bsky.social, @michaelemann.bsky.social for the input. Article & 🧵(1/14):

Every country is warming.

Every country is experiencing more extreme weather events because of climate change, mainly caused by burning fossil fuels. www.ShowYourStripes.info

Time to #ShowYourStripes and start climate conversations to prompt actions to reduce emissions, personally & collectively.

DON'T use "fun in the sun" images for extreme heat stories.

DO use photos that convey the suffering and pain caused by extreme heat.

Extreme heat is the most deadly weather event in the US.
Images are critical pieces of any news story — they draw readers in and help to communicate the story itself. However, publications continue to publish photos that fail to convey the severity and danger of extreme heat.

Happening now! Tune-in.

Question from a livestream viewer: “How many lives are collectively impacted by [NOAA's] monitoring and rapid response work.”

John Cortinas: “I don’t have any exact numbers, but I would probably start by saying the entire population of the United States…"

Graphic for the Weather & Climate Livestream.

Federal weather & climate science is under threat. Starting TODAY at 3:00 PM ET, join a coalition of scientists--including AMS leaders--for a 100-hour livestream. Learn what federal science does for you, ask questions, and help build awareness to "Save Our Forecasts": wclivestream.com

fantastic news!!! Congratulations.

Climate chronicles Climate chronicles brings together Nature Reviews Earth & Environment's annual series of 'Year in Review' articles.

Our 2024 climate chronicles have just been published!

Check out the Collection: www.nature.com/collections/...

Thread below details all articles and their take-home messages.

[1/n]

Extreme terrestrial heat in 2024 - Nature Reviews Earth & Environment 2024 shattered temperature records, surpassing 2023’s historic highs to become the warmest year ever recorded. Extreme heatwaves hit West Africa in February, South America and Eastern Europe in March,...

Jha et al. assess 2024 extreme land heat, finding:

- Many record-shattering events globally
- >150 heatwave days in large swathes of S. America

www.nature.com/articles/s43... (rdcu.be/ehobs)

@roshanjha.bsky.social, @climatechirper.bsky.social per.bsky.social, @sarahinscience.bsky.social

[8/n]

Climate change continued to have unpredictable impacts on wildfire in 2024. Unexpected shifts, like the Americas producing 40% of C emissions (normally it's <25%), and anomalous events, like the fatal Feb '24 Chile fire or the Pantanal wetlands burning, occur more often.

I'm devastated and heartbroken. Staff at the U.S. Global Change Research Program (USGCRP) got the ax. Most likely means the Sixth National Climate Assessment (NCA6) is also cooked. USGCRP was the glue across the Federal family on all things climate - reducing duplication and making efficiencies.

Come join us this summer in Portland, OR for a workshop on compounding and cascading risks.

Workshop flyer

One sent tsunami alerts. Another flew with 'hurricane hunters.' Both were just fired from NOAA. The Trump administration last week cut about 600 workers at NOAA and the National Weather Service.

This is a really good article that clearly connects the firing of hazard scientists to the ability of emergency managers to be able to do their jobs.

www.nbcnews.com/science/scie...

CETD, a global compound events detection and visualisation toolbox and dataset - Scientific Data Scientific Data - CETD, a global compound events detection and visualisation toolbox and dataset

An integrated, interactive, and extensible platform for detecting and visualizing compound events. Our new paper in Scientific Data is now available: doi.org/10.1038/s415....
Thanks to my coauthors Mingfang Ting, @kornhuber.bsky.social, Radley M. Horton, Yaping Yang, and Yelin Jiang!

The U.S. Weather Enterprise: A National Treasure at Risk The AMS is a global community committed to advancing weather, water, and climate science and service.

www.ametsoc.org/ams/about-am...