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Casey Ivanovich

@ccivanovich.bsky.social
782 followers 265 following 24 posts

Postdoc @ NYU studying climate extremes 🌎 she/her ccivanovich.github.io

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Reposted by Casey Ivanovich
Columbia Climate School @climate.columbia.edu · 13/09/2026
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: bit.ly/4yB6iKc
Bright sun in an orange sky. Credit: Drought.gov
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Casey Ivanovich @ccivanovich.bsky.social · 10/09/2026
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!
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Reposted by Casey Ivanovich
Benjamin Cook @dustybowl.bsky.social · 10/09/2026
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)
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Casey Ivanovich @ccivanovich.bsky.social · 10/09/2026
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...
doi.org
Extreme Dry and Humid Heat Seasons Are Changing Asymmetrically
Extreme dry and humid heat events show distinct seasonality often not aligned with meteorological summer, even in the tropics Extreme heat seasons have expanded since the 1980s over about half of...
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Reposted by Casey Ivanovich
miriam nielsen @zentouro.info · 08/07/2026
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.
youtu.be
this ends science as we know it
YouTube video by zentouro
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Reposted by Casey Ivanovich
Benjamin Cook @dustybowl.bsky.social · 04/06/2026
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/...
agupubs.onlinelibrary.wiley.com
Dry Versus Humid Heat Seasonality and Drivers in the North American Monsoon Region
In the North American Monsoon region, dry and humid heat are distinct in overall seasonality and the timing of individual extreme events Drivers of dry heat extremes are spatially and temporally ...
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Casey Ivanovich @ccivanovich.bsky.social · 05/06/2026
Our paper on extreme dry and humid heat in the North American Monsoon region is out today! Learn more about how the seasonality and dynamics of these two flavors of extreme heat differ and are shaped by the progression of the monsoon: agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com
Dry Versus Humid Heat Seasonality and Drivers in the North American Monsoon Region
In the North American Monsoon region, dry and humid heat are distinct in overall seasonality and the timing of individual extreme events Drivers of dry heat extremes are spatially and temporally ...
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Casey Ivanovich @ccivanovich.bsky.social · 01/06/2026
The Weather & Climate Livestream is back to remind us all of the *huge* range of services provided by federally funded science! I'll be up far past my bedtime at 12:20am ET on Wed to talk about how extreme heat seasons are changing around the world -- tune in this week and write/call your reps!
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Reposted by Casey Ivanovich
The Weather & Climate Livestream @wclivestream.bsky.social · 23/05/2026
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!
A group of science supporters smiling to camera in Central ParkTwo people close to camera and the group strung out behind on them on the main footpath through Central ParkThe group as pictured from the back, with the NYC skyline around Central Park on the horizon
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Casey Ivanovich @ccivanovich.bsky.social · 29/04/2026
Very excited to kick off #EGU26 with a solicited talk Monday morning! I'll be presenting my work on the emerging risk for heat extremes during unexpected times of year around the world. Stop by bright and early to learn more from this and other exciting presentations in this session!
Flyer with information for Casey's EGU26 presentation. Image has a banner at the top with blue to red contours. Underneath is the EGU26 General Assembly logo and Casey's headshot, name and affiliation (NASA Goddard Institute for Space Studies). A bolded presentation title reads "Global Extreme Heat Seasons Are Lengthening Asymmetrically." Next to a calendar icon is the presentation date (Monday, 04 May 2026), next to a clock icon is the time (08:35 - 08:55 CEST), and next to a location icon is the room number (Room N2). There is a QR code which links to the agenda at the following web page: https://meetingorganizer.copernicus.org/EGU26/EGU26-7630.html At the bottom of the flyer is the session title (Session NH1.9: Extreme heat: characterization, drivers, prediction and impacts in a warming climate).
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Casey Ivanovich @ccivanovich.bsky.social · 22/12/2025
Our paper exploring the drivers of the November 2023 “Taylor Swift” heatwave in Rio de Janeiro is officially out in WCD! Take a read to learn more about the causes of this record-breaking heatwave and Rio’s emerging risk for extreme heat: wcd.copernicus.org/articles/6/1...
wcd.copernicus.org
Physical drivers of the November 2023 heatwave in Rio de Janeiro
Abstract. Because extreme heat has not historically been a major hazard for the city of Rio de Janeiro, the November 2023 Heatwave magnitude and timing were staggering. Here we conduct a case study of...
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Casey Ivanovich @ccivanovich.bsky.social · 10/12/2025
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!
Flyer for Casey Ivanovich's two AGU 2025 presentations. 

The information for the first presentation reads: Dry versus Humid Heat Seasonality and Drivers in the North American Monsoon Region. Session: NH44B Compound, Consecutive, and Cascading Events: Challenges for Risk Assessment and Management I Oral. Thursday, December 18, 2025, 4:30PM-4:40PM CST, Room 297. QR code links to the following webpage: https://agu.confex.com/agu/agu25/meetingapp.cgi/Paper/1849473

The information for the second presentation reads: Subseasonal Variability of Humid Heat during the South Asian Summer Monsoon. Session: A51H: Weather and Climate Extremes over South Asian Monsoon Regions II Oral. Friday, December 19, 2025, 8:30am-8:40am CST, Room 271. QR code links to the following webpage: https://agu.confex.com/agu/agu25/meetingapp.cgi/Paper/1897447
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Reposted by Casey Ivanovich
Da'Vel Johnson @davelrj.bsky.social · 19/06/2025
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?...
youtu.be
When Will Extreme Heat Become Unlivable?
YouTube video by PBS Terra
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Reposted by Casey Ivanovich
The Wall Street Journal @wsj.com · 16/08/2025
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
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Reposted by Casey Ivanovich
Brenda Ekwurzel @brendaekwurzel.bsky.social · 28/05/2025
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”
Schematic presented by Casey Ivanovich @ccivanovich.bsky.social during @wclivestream.bsky on May 28, 2025.  "Explore how the land surface influences the tradeoffs between temperature and moisture to affect both dry and humid heat extremes." Schematics has the following labels next to images representing each: "solar insolation, large-scale circulation, precipitation, cloudiness, advection, urbanization, evapotranspiration, deforestation/land use change, proximity to water bodies, and irrigation."Text for questions also displayed, " How is this linked to heat seasonality?" and "How are humans altering these balances?"
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Reposted by Casey Ivanovich
miriam nielsen @zentouro.info · 28/05/2025
feeling toasty? @ccivanovich.bsky.social is about to talk heat waves and stickiness on the 100-hour @wclivestream.bsky.social wclivestream.com/watch
Casey Ivanovich sits in front of a live streaming setup in a nearly empty NASA GISS office, preparing to give a live talk. 
She's wearing a NASA GISS t-shirt
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Casey Ivanovich @ccivanovich.bsky.social · 27/05/2025
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.
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Reposted by Casey Ivanovich
Kate Marvel @drkatemarvel.bsky.social · 16/05/2025
The people telling you climate change isn’t real would also like you to believe that paying rent on an empty building saves money www.nytimes.com/2025/05/16/n...
nytimes.com
NASA Office Above ‘Seinfeld’ Diner Is a Target of Trump Budget Shrinkage
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Reposted by Casey Ivanovich
Lamont-Doherty Earth Observatory @lamont.columbia.edu · 18/02/2025
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...
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Reposted by Casey Ivanovich
Nature Reviews Earth & Environment @natrevearthenviron.nature.com · 05/02/2025
📣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...
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Reposted by Casey Ivanovich
David Ho @davidho.bsky.social · 04/02/2025
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. 🔥🧪
nature.com
Mortality impacts of the most extreme heat events - Nature Reviews Earth & Environment
Extreme heat is increasing in magnitude and frequency, threatening human health. This Review assesses mortality risk associated with extreme heat, revealing that human thermal tolerances (that is, unc...
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Reposted by Casey Ivanovich
Colin Raymond @regclimo.bsky.social · 04/02/2025
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...
nature.com
Mortality impacts of the most extreme heat events - Nature Reviews Earth & Environment
Extreme heat is increasing in magnitude and frequency, threatening human health. This Review assesses mortality risk associated with extreme heat, revealing that human thermal tolerances (that is, unc...
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Reposted by Casey Ivanovich
Kevin Schwarzwald @kschwarzwald.bsky.social · 08/12/2024
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.
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Reposted by Casey Ivanovich
Daniel J. Vecellio @sciencedjv.bsky.social · 08/12/2024
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/...
science.org
Heat disproportionately kills young people: Evidence from wet-bulb temperature in Mexico
Analysis of temperature exposure and microdata finds the majority of heat-related deaths are among people under 35 years old.
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Casey Ivanovich @ccivanovich.bsky.social · 10/12/2024
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!
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Casey Ivanovich @ccivanovich.bsky.social · 03/12/2024
Excited to present my recent work deriving the new variable "stickiness" at #AGU24 next Friday -- stop by to learn more about our new tool to quantify the temperature versus humidity contributions to humid heat! For more context, find the paper here in JAS: journals.ametsoc.org/view/journal...
Graphic showing the session information about Casey's presentation at the American Geophysical Union Fall Meeting.
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Casey Ivanovich @ccivanovich.bsky.social · 25/11/2024
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...
iopscience.iop.org
Temporal connections between extreme precipitation and humid heat - IOPscienceSearch
Temporal connections between extreme precipitation and humid heat, Sophie Johnson, Catherine Ivanovich, Radley M Horton, Mingfang Ting, Kai Kornhuber, Corey Lesk
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Reposted by Casey Ivanovich
CompoundNET @compoundnet.bsky.social · 14/11/2024
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
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Casey Ivanovich @ccivanovich.bsky.social · 20/11/2024
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!
Casey stands in front of the Oceanography Building at the Lamont-Doherty Earth Observatory where she completed her PhD.Casey points to the results of her dissertation chapter on a presentation slide during her defense.
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