Hey @upenn.edu undergrads: Concerned about the #climatecrisis? Want to learn more about the science, the impacts, and the solutions? Please sign up for my updated and revamped course on "Global Climate Change" this Fall:
Mann Research Group
@mannresearch.bsky.social
Dr. Michael E. Mann's research group at UPenn climate variability and extremes | climate modeling | paleoclimate https://web.sas.upenn.edu/mannresearchgroup/
"Precipitation Reconstruction in the Asian Monsoon Region During the 4.2 ka Event With Paleoclimate Data Assimilation" | I'm co-author on this new study led by Fangmiao Xing & my former student Liang Ning in @agu.org's #JGRAtmospheres: agupubs.onlinelibrary.wiley.com/doi/10.1029/...
🚨 Call for abstracts! 🚨 AGU26 Session GC053: Extratropical Cyclones: Past, Present, and Future This #AGU26 session is co-convened by graduate students Diana Apoznanski, @mackenzieweaver.bsky.social & Annabelle Horton agu.confex.com/agu/agu26/pr...
This week's heat wave is a reminder that extreme heat isn't just a weather event—it's a growing challenge for cities, health, and critical infrastructure. @mannresearch.bsky.social explores how climate science can strengthen urban resilience and protect vulnerable communities. https://bit.ly/4wh8RzJ
Rethinking Extreme Heat and Urban Resilience through Scales Connectivity
Energy policy research from the University of Pennsylvania
kleinmanenergy.upenn.edu
A new report on El Niño put out by @upennclimate.bsky.social features @michaelemann.bsky.social's insights on how El Niño can amplify the climate trend caused by human emissions. #ElNiño climate.upenn.edu/news/el-nino...
El Niño is back, and it will shape weather far beyond the Pacific - The Office of the Vice Provost for Climate
ENSO and El Niño are among the planet’s most influential natural climate patterns. What are they, how do they work, and what do they mean for weather, climate, and local […]
climate.upenn.edu
🌡️ Temperatures are heating up in Philadelphia this week 🥵 A new report on extreme heat is out from @xuekeli.bsky.social, @michaelemann.bsky.social , @sh-christiansen.bsky.social, and @heatherkostick.bsky.social @kleinmanenergy.bsky.social kleinmanenergy.upenn.edu/research/pub...
Rethinking Extreme Heat and Urban Resilience through Scales Connectivity
Energy policy research from the University of Pennsylvania
kleinmanenergy.upenn.edu
A new commentary from PCSSM Associate Director @heatherkostick.bsky.social on potential impact of noise pollution from data centers on zoo animals. web.sas.upenn.edu/pcssm/commen... #climate #datacenters #nashvillezoo #noisepollution
No One Likes Data Center Noise Pollution – The Zoo Animals Won’t Either
Recently, the Nashville Zoo has made headlines for opposing the proposed data center that would be built near animal habitats. The zoo had planned to eventually buy part of the land for a future educa...
web.sas.upenn.edu
‘Termination shock’: trust our expert warnings on geoengineering’s planetary risks | New op-ed in @theguardian.com by Ray Pierrehumbert (@climatebook.bsky.social), Julia Slingo, @valmasdel.bsky.social & yours truly: www.theguardian.com/commentisfre...
‘Termination shock’: trust our expert warnings on geoengineering’s planetary risks | Raymond Pierrehumbert, Julia Slingo, Michael Mann and Valerie Masson-Delmotte
Do we really want to play dice with our planet?
theguardian.com
"Hurricane Ida Was a Warning: Penn Study Says Philly’s Next Big Flood Could Be Worse" by Jensen Toussaint for #PhillyToday: philadelphia.today/2026/06/hurr...
Hurricane Ida Was a Warning: Penn Study Says Philly’s Next Big Flood Could Be Worse
Penn study declares that Hurricane Ida's Philadelphia flood was a warning that climate change could make such storms a regular occurrence.
philadelphia.today
MRG grad students Annabelle Horton and @mackenzieweaver.bsky.social gave talks on their Nor'easter research at the New Jersey Climate Change Research Symposium at Rutgers. Their talks are very relevant since NJ is vulnerable to the damages Nor'easters bring. @michaelemann.bsky.social | #noreasters
2024 broke global mean surface temperature records, but was the heat inexplicable, as some have asserted? A study finds that the 2024 record was consistent with standard climate model predictions, especially given that it was an El Niño year. In PNAS: https://ow.ly/qZEX50Z8VVS
UPenn researchers, including @michaelemann.bsky.social, found that Philly is likely to experience more damaging floods like Hurricane Ida. Climate change, as well as paved surfaces and overburdened city drainage systems, make Philly especially vulnerable. whyy.org/articles/phi...
Lessons learned from Ida: Philly must brace for next big storm, Penn researchers say
During the aftermath of Hurricane Ida, the Schuylkill River rose to levels that hadn’t been recorded in more than 150 years.
whyy.org
"Lessons learned from Ida: Philadelphia must brace for next big storm, Penn researchers say" | Nice piece from @whyy.org on our recent @upenn.edu study: whyy.org/articles/phi...
Lessons learned from Ida: Philly must brace for next big storm, Penn researchers say
During the aftermath of Hurricane Ida, the Schuylkill River rose to levels that hadn’t been recorded in more than 150 years.
whyy.org
Cuts to federal science funding means we’ll be more vulnerable to hurricanes and nor’easters here in the Mid-Atlantic.
Andra Garner@andrajgarner.bsky.social · 2mo agoWhen we cut critical Federal funds for science, we all pay the price. The impacts of this loss of scientific innovation will be felt especially acutely in our coastal communities. Check out my latest op-ed, published today in The Philadelphia Inquirer, to learn more! share.inquirer.com/iC6tHv
U.S. scientists and federal funding have been key contributors to global scientific sea level projection research. Those roles are now threatened, write @andrajgarner.bsky.social, @bobkopp.net, @gggarner121.bsky.social, Aimée B. A. Slangen, and Benjamin P. Horton. eos.org/opinions/the...
The Global Impact of Losing U.S. Sea Level Science - Eos
Cuts to climate science risk halting or even erasing decades of progress in global change research—just as risks from rising seas demand better data, informed decisionmaking, and faster action.
eos.org
Another new Earth's Future paper, this one led by Rutgers and MACH graduate student Diana Apoznanski: Seasonal drivers of storm tides and coastal flood impacts along the US Atlantic Coast
Seasonal Drivers of Storm Tides and Coastal Flood Impacts Along the US Atlantic Coast
Storm tide hazard is dominated by the cool-season storms (ETCs) in the US northeast and the warm-season storms (TCs) in the US southeast In the mid-Atlantic US, cool-season storms drive more freq...
doi.org
“Heating Up to Expectations” 🌡️ 🌎 🥵 #OmniaMagazine has an article on the new MRG study published in #PNAS by @michaelemann.bsky.social, @xuekeli.bsky.social, @sh-christiansen.bsky.social, and other colleagues. omnia.sas.upenn.edu/story/heatin...
Heating Up to Expectations
Research from climate scientist Michael Mann, Presidential Distinguished Professor of Earth & Environmental Science, and colleagues vindicates climate models and reframes the record heat of 2024.
omnia.sas.upenn.edu
🚨 New paper alert! 🚨 with @michaelemann.bsky.social and former MRG members @xuekeli.bsky.social and @sh-christiansen.bsky.social www.pnas.org/doi/10.1073/... 2024 global temperature record is consistent with model-predicted warming 🧵1/4
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
pnas.org
"2024 global temperature record is consistent with model-predicted warming" | Our new article in @pnas.org (open access): www.pnas.org/doi/10.1073/...
2024 global temperature record is consistent with model-predicted warming | PNAS
We employ a semiempirical approach combining climate model simulations and observational temperatures to assess the likelihood of recent global tem...
pnas.org
Check out our new Strategic Climate Comms Certificate thru PennLPS! This certificate is a blend of science & comms courses & culminates in a capstone taught by PCSSM Associate Director @heatherkostick.bsky.social. More info: lpsonline.sas.upenn.edu/academics/ce.... @michaelemann.bsky.social
Congrats to Chris Larson for receiving the Outstanding Teaching Assistant Award from the Earth and Environmental Science Department! Chris has been a TA for @michaelemann.bsky.social’s Global Climate Change class.
Congrats to Maria Villarreal Simon for being recognized by the UPenn Earth and Environmental Science Department! Maria did her senior thesis research with @sas.upenn.edu @michaelemann.bsky.social
Congrats to Maya Halma for receivinging an award from the UPenn Earth and Environmental Science Department! Maya did research with @penncssm.bsky.social. @michaelemann.bsky.social
New research with coauthors @michaelemann.bsky.social and @mackenzieweaver.bsky.social shows that Hurricane Ida wasn’t a once-in-a-century anomaly in Philadelphia, but a preview of how climate change, urbanization, and aging infrastructure are rewriting flood risk penntoday.upenn.edu/news/when-sc...
When the Schuylkill swallowed the city: Lessons from Hurricane Ida’s historic flood | Penn Today
New Penn research shows that Hurricane Ida wasn’t a once-in-a-century anomaly but a preview of how climate change, urbanization, and aging infrastructure are rewriting flood risk.
penntoday.upenn.edu
Just realized we never posted this @nature.com Communications article from last year. Was honored to join @lijingcheng.bsky.social & colleagues on this interesting project: www.nature.com/articles/s41...
Oceanic memory of tropical cyclones moderates the Kuroshio current - Nature Communications
High-resolution sensitivity experiments show that tropical cyclones can induce long-term oceanic temperature perturbations, which affect the mean state and variability of the Kuroshio Current through ...
nature.com
"Climate extremes and urbanization drive flood tipping points at the city–river interface" | New article in @nature.com PJ Natural Hazards by a team I'm part of at @upenn.edu, led by Dingyu Xuan, @dougjerolmack.bsky.social, Hugo Ulloa & others: www.nature.com/articles/s44...
Climate extremes and urbanization drive flood tipping points at the city–river interface - npj Natural Hazards
npj Natural Hazards - Climate extremes and urbanization drive flood tipping points at the city–river interface
nature.com
If you are a @upenn.edu undergrad who wants to learn more about the science, impacts, and solutions of the climate crisis, sign up for @michaelemann.bsky.social's updated and revamped course "Global Climate Change" this Fall. @upennclimate.bsky.social
The @mannresearch.bsky.social seasonal hurricane forecast is out. We call for 10 +/- 3 named storms this season. The forecast for a relatively quiet season is driven largely by the prediction of a substantial El Niño event: web.sas.upenn.edu/mannresearch...
The 2026 North Atlantic Hurricane Season: University of Pennsylvania Forecast
University of Pennsylvania EES scientists Michael E. Mann and Julia L. Seidenstein, and Penn State ESSC alumnus Michael Kozar have released their seasonal prediction for the 2026 North Atlantic hurric...
web.sas.upenn.edu
The 2026 Atlantic Hurricane Season: University of Pennsylvania Forecast is now live! 🧵 1/3 🌧️🌀 | @michaelemann.bsky.social | #hurricane2026
The 2026 North Atlantic Hurricane Season: University of Pennsylvania Forecast
University of Pennsylvania EES scientists Michael E. Mann and Julia L. Seidenstein, and Penn State ESSC alumnus Michael Kozar have released their seasonal prediction for the 2026 North Atlantic hurric...
web.sas.upenn.edu