Casey Williams, PhD

You can’t overstate just how impressive this heat dome is. It covers 2/3 of contig. US, 80% of US population 90+ high temp (~260 mill people)
Peak intensity of heat dome record for SE US in late July. Peaked at 3.7 sigma which means this heat dome is extremely rare in our former climate of the 1900s

It's been a long week. So here's just a pretty graphic for your Friday evening... Simulation of atmospheric aerosols in our intricate Earth system.

Sea salt (cyan), dust (magenta), black carbon (orange/red), and sulfates (green)

Created by NASA SVS (svs.gsfc.nasa.gov/5552/)

New obsession unlocked

Why the Texas floods were so severe Flooding rains in and around Kerr County had brought a widespread 10 to 15 total inches by Friday morning. Four months of rainfall came down in four hours.

Tragedy in Texas hill country, where 4 months’ worth of rain in just four hours caused Guadalupe River levels to spike 30 feet in just an hour and a half - in the middle of the night.

Two dozen are dead in the resulting floods and another 20 young campers still missing.

apnews.com/article/texa...

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@nsf-erc-earth.bsky.social is working on a sustainable refrigerant economy. Check out what we are doing: erc-earth.ku.edu

This is exactly what our team @nsf-erc-earth.bsky.social is trying to do! Let me know if you have any questions about our research projects and initiatives!

Your Brain on ChatGPT: Accumulation of Cognitive Debt when Using an AI Assistant for Essay Writing Task This study explores the neural and behavioral consequences of LLM-assisted essay writing. Participants were divided into three groups: LLM, Search Engine, and Brain-only (no tools). Each completed thr...

AI stands for "Atrophy of Intelligence"

Letting AI do the thinking for you, erodes neural connectivity over time. Seems obvious, but you have to learn through productive struggle or risk long term cognitive growth.
arxiv.org/abs/2506.08872

Everyone help us welcome our amazing REU students to the NSF ERC EARTH Summer Program, FROST! ❄️🔥They’ll spend 10 weeks exploring sustainable HVACR solutions through hands-on research, training & mentorship. 🌱🔧 #NSF #SustainableEngineering #HVACR #ercearth #KU #rockchalk #REU

Those two bright points of light at lower left are Earth and the Moon.

Photographed from the orbit of Mercury.

separate from AI, it is a bit like flying a plane without a pilot's license or training.

I think it will depend on if teachers and students know how to use the AI to prompt chain through iterations of problems to arrive at solutions. Students will need to develop and sharpen their critical thinking skills in order to craft useful prompts, but I worry without developing these

@nature.org with all due respect, this is your core mission and everyone within your organization should be leading this charge, not people here on social media who don't get paid to "conserve nature"

I mean, he's not wrong. Bluesky is arguably more toxic because it doesn't have as much fun.

Yup 😅

When demand exceeds supply this is what happens.

Now that is climate-control!

🫠

Yup

Lol you won't be misunderstood. I'd love to hear it!

It's invisible, so it can't be that harmful 😭

And you are spreading falsehoods and scaring people!

Do you have a source?

This timeless and looping pattern of life on Earth exemplifies how everything is in motion, and how life is the most precious matter to have formed in the universe. Take care of Earth, because she takes care of us. #earthday

The earthworm is taken up by man to feed himself by luring the fish; the honeybee pollinates the flower and turns nectar into honey; the caterpillar transforms its essence to become something more than it was.

📢Now Hiring! 📢 Director of Recruiting and Mentoring position is now open at University of South Dakota! Environmentally Applied Refrigerant Technology Hub (EARTH) is a Gen-4 NSF ERC focused on building a circular refrigerant economy. Apply now! #earth #nsf #sd
yourfuture.sdbor.edu/postings/43178

Happy Earth Day from NSF ERC EARTH! 💙🌏💚 Together, let's keep earth cool, sustainable, and thriving! #EarthDayay #HappyEarthDay #sustainability #research #NSF #hvacr

God's geometry is unmatched

Hello??

It's kind of crazy that we all evolved through the chaos and improbability of it all to stare at little radiation machines and argue with strangers for decades.