Casey Ivanovich

Feel like heatwaves started early this year? Or like they're dragging on later than ever? Our new @aguadvances.bsky.social paper shows that extreme heat is no longer limited to summer and is now creeping into the shoulder seasons -- but unevenly so. (1/6) doi.org/10.1029/2026...

🌟 Editor's Pick! 🌟 “NASA’s MERRA-2 reanalysis of past weather and climate reveals substantial shifts in extreme heat seasonality over the past 45 years.” 🔗 eos.org/editor-highl... #AGUPubs @eos.org

Extreme heat has become more common, but also more frequent in the months before and after typical warm seasons, finds a new study led by climate scientist Catherine Ivanovich of NASA GISS. Via State of the Planet: https://bit.ly/4yB6iKc

I had the exciting opportunity to write a guest post for @carbonbrief.org about our new paper on the expansion of extreme heat seasons around the world. Take a read for a digestible summary of our approach and key results!

Get in losers-we're talking about how extreme heat seasons are changing around the world! New work led by former (sniffle) excellent postdoc @ccivanovich.bsky.social (advised by me and Sonali McDermid)

a bunch of losers in the office of management and budget are trying to tear apart federal science and research funding in the US. in my professional opinion, this is a very very bad idea.

New work led by postdoc @ccivanovich.bsky.social, investigating the distinct seasonality of dry and humid in the North American Monsoon region: agupubs.onlinelibrary.wiley.com/doi/10.1029/...

With friends! It *is* a lovely day Thanks to everyone who came to support us in-person this morning as we started our walk from NYC to DC!

Excited to be giving two invited presentations on the influence of monsoon systems on extreme (humid) heat at this year's #AGU25! Stop by NH44B-02 Thursday afternoon and A51H-01 Friday morning to learn more and chat!

With the Heat Wave expected across the Central and Eastern US this weekend into early next week, this was an excellent video primer on the Limit of Compensability for adults and associated Heat Risk. Great Job by @ccivanovich.bsky.social and the PBS Terra team youtu.be/7hBMbQ9de1g?...

Summer heat across the Eastern U.S. is off the charts in a new "stickiness" measurement that combines heat and humidity—and it isn’t over yet. 🔗: on.wsj.com/3Uwf7D1

Casey Ivanovich @ccivanovich.bsky.social shared during @wclivestream.bsky.social the factors influencing dangerous extreme heat events plus ‬a public communication tip for conveying the difference between humid and dry heat extremes – “sticky” vs “crispy”

feeling toasty? @ccivanovich.bsky.social is about to talk heat waves and stickiness on the 100-hour @wclivestream.bsky.social wclivestream.com/watch

Tune in for the kick off of the livestream tomorrow (1pm ET) from NASA GISS during the final hours before we're removed from our office. I'll be speaking about the federally-funded work I've done over the past six years to help understand the drivers of extreme humid heat events.

Meet @ccivanovich.bsky.social, NASAGISS postdoc & Lamont-Doherty Earth Observatory PhD, who studies climate extremes & humid heat, including their physical & social drivers, and is also passionate about relaying complex scientific concepts to the public. #IDWGS ➡️ lamont.columbia.edu/news/women-s...

📣New Review! Mortality impacts of the most extreme heat events By Tom Matthews et al., including @regclimo.bsky.social & @ccivanovich.bsky.social. www.nature.com/articles/s43...

At least we don't have to read about this on a federal government website: At 2°C of warming, the area on Earth that is too hot for humans will triple. This is fine. 🔥🧪

For extreme heat, each year seems to bring fresh examples of precedents being surpassed — in heat severity, but also in understanding of its physics and risks. A group of us led by Tom Matthews and Radley Horton have assembled a review of this knowledge whirlwind: www.nature.com/articles/s43...

Great paper from my brilliant climate scientist colleague @ccivanovich.bsky.social and economists @rdbressler.bsky.social @ajsw.info ! Great example also how we can improve climate impacts studies when incentives align to allow for this kind of interdisciplinary collaboration and design.

Important and well-researched work from @rdbressler.bsky.social, @ccivanovich.bsky.social, @regclimo.bsky.social amongst many others on the author list. www.science.org/doi/10.1126/...

Amazing to see this work dreamed up by Danny and I in the early years of our PhDs in its final form! By combining high resolution climate and mortality data, we paint a more complete picture of the evolving risk for temperature-related deaths in Mexico. Take a read!

Excited to share our recent paper led by Sophie Johnson on the relationship between sequential humid heat and precipitation events 🌡️☔ We identify where humid heat is associated with suppressed or enhanced rainfall, with implications for compound extremes! iopscience.iop.org/article/10.1...

Welcome to all the Bluesky newbies! We've created a starter pack of compound events and multi hazard researchers and groups. Please send through suggestions for who else to add to the list go.bsky.app/Cy8PZju

Hi Bluesky! I’m a climate scientist researching the dynamics and impacts of extreme events, currently studying the physical drivers of extreme humid heat. I’m passionate about collaborating with interdisciplinary research teams and look forward to connecting with folks in climate and other fields!