Check out this @udallcenter.bsky.social interview with Minwoo Ahn on our student-led heat resilience learning games - Thermopolis and Heatlandia! udallcenter.arizona.... ##extremeheat #heatresilience #games

"Temperatures are expected to reach as high as 102F (39C) in Washington DC today, with heat index values hitting between 110 and 115F (43-46C)." www.theguardian.com/... #extremeheat #climatechange #4thofjuly

Given the recent attention to the European heatwave, I wanted to reshare our Nature comment (2021), where we defined and called for heat governance to address rapidly rising temperatures. Sara Meerow V. Kelly Turner doi.org/10.1038/d415... #e#extremeheat #heatgovernance

New interview out with Naveena Sadasivam at Grist: “Cities across the world — even the ones that are doing the best that they can — are still preparing for the heat that we’re experiencing today." grist.org/extreme-we... ##extremeheat #climatechange #heatresilience

New Planning magazine article where we draw lessons from the Shade Phoenix Plan for 6 tools to prioritize shade planning, led by Shaylynn Trego, with co-authors David Hondula and Sara Meerow! www.planning.org/pla... ##shade #extremeheat #heatresilience #urbanplanning

I joined CNN International primetime to discuss the current heat wave impacting Europe. When asked about the cost to address extreme heat: "To that, I would just say the cost of inaction is even greater." #extremeheat #heatwave #climatechange #heatresilience

Check out our June @heatresilience.bsky.social newsletter!

When reality surpasses fiction! Top: fictional forecast for August 2050, broadcast by French TV in 2014 to warn about the consequences of global warming. Bottom: Real French forecast for yesterday, June 22, 2026.

When an extreme heat event gets canceled due to extreme heat... (but also, always appropriate to postpone or cancel an event if the safety of attendees is at risk) #extremeheat #heatwave

Extreme heat warnings and the hottest temperatures of the summer so far across Arizona this week: 115°F (46.1°C) in Phoenix, 110°F (43.3°C) in Tucson, and 90°F (32°C) in Flagstaff. www.azcentral.com/st... #extremeheat

New interview with National Geographic out: "At the end of the day, extreme heat affects everyone—not just through heat-related deaths and illnesses but quality of life..." www.nationalgeograph... #extremeheat #climatechange #heatresilience

This is what we mean by living in a "heatshed" moment: the climate is warming faster than our response. www.bbc.com/news/article... #extremeheat #climatechange #heatwave #heatresilience

An entirely preventable tragedy we continue to see summer after summer: "The hikers died at Grand Canyon National Park in separate episodes as temperatures peaked above 100 degrees, the authorities said." www.nytimes.com/2026/06/20/u... #extremeheat

Today is #ShowYourStripes Day! The warming stripes visualize more than a century of temperature trends. Each stripe represents a year: 🔵 Cooler years 🔴 Hotter years Share custom stripes for U.S. states, cities, & more with #ClimateCentral's new Dashboard: app.climatecentral.org/dataviz/warm...

Today is #ShowYourStripes day created by @edhawkins.org to show how temperature has changed over time due to #climatechange. Find your stripes at showyourstripes.info

☀️ ICYMI: Check out my new commentary with @sarameerow.bsky.social, where we argue that "we are living through a 'heatshed' moment, a critical turning point in which heat must be rapidly addressed to protect health and livelihoods worldwide." doi.org/10.1080/0735... #extremeheat #climatechange

As is the annual tradition, we hope many of you will take the opportunity to use the Climate Stripes this week to start important conversations about the risks from, and solutions to, climate change. Officially, #ShowYourStripes for 2026 is on Sat 20th June. www.ShowYourStripes.info

Busy day today as we took our new MaRTy cart out for its first trial run to better understand the microclimates of the @uarizona.bsky.social main campus to identify hotspots and cool refuges. #extremeheat #heatresilience #universityofarizona #beardown

Ughhh lightning strike caused wildfire just started on the Catalinas. #tucson #wildfire #azwx

🎉 Excited to share that the @uarizona.bsky.social's video featuring our SW-IFL hands-on research was a silver winner for The Telly Awards in General-Public Interest & Awareness! Congrats team! www.youtube.com/watch?v=K2vL... #uarizona #beardown #extremeheat #heatresilience

As the #WorldCup kicks off today, one question hovers: how hot is too hot? Here's how we can combine knowledge & coordination mechanisms to protect health in every sport. 👉https://heathealth.info/news/extreme-heat-a-new-red-card-for-sports/ @undrr.bsky.social @wmo-global.bsky.social @who.int

📢 Our new open-access paper is out in Urban Climate on using three plan evaluation approaches to better understand how Arizona cities are advancing heat resilience. www.sciencedirect.com/science/arti... #extremeheat #heatresilience #urbanplanning

Sharing my introductory presentation, "Tackling the World’s Most Dangerous Hazard," made as part of the @nasonline.org's 2026 Frontiers of Science symposium. vimeo.com/1171349873 #extremeheat #heatresilience #heatgovernance #heatactionday

"Urban officials had just begun grappling with the deadliest kind of weather — extreme heat — when President Donald Trump stopped them in their tracks by canceling a range of grants and adaptation programs last year as part of his broader attacks on climate policy." #extremeheat

Our May newsletter is now available featuring a new heat resilience toolkit, promotions and graduations, and exciting upcoming events. Subscribe to the newsletter by visiting heat.arizona.edu. ☀️ #extremeheat #heatresilience Read it now, here: view.comms.arizona.edu?vawpToken=KS...

"It is very likely (91% chance) that the global mean near-surface temperature will temporarily exceed 1.5°C above the 1850-1900 average levels for at least one year between 2026 and 2030." @wmo-global.bsky.social wmo.int/news/media-c... #climatechange

Excited to share this actionable resource for communities to advance their heat resilience: Building Heat Resilient Communities: A Toolkit for Local Heat Planning, Decision-Making, & Action: innovation.luskin.ucla.edu/publication/... #heatresilience #extremeheat #heatactionplan

The AAUP is proud to support the Sanders/AOC AI Data Center Moratorium Act because the future of technology must be governed democratically, sustainably, & in service of working people—not corporate profit. ➡️https://www.aaup.org/news/aaup-backs-data-center-moratorium

Humanity will likely experience new record-breaking extreme heat across the world this year due to the combination of cliamte change and the strong El Niño forming. This is our heatshed moment to act! www.tandfonline.com/doi/full/10.... #climatechange #extemeheat #heatresilience

📢 This is our “heatshed” moment. Check out my new commentary with @sarameerow.bsky.social in the Journal of Urban Affairs' special issue on Extreme Heat in Cities. doi.org/10.1080/0735... #extremeheat #heatresilience #heatplanning #heatgovernance #climatechange

This should be our "heatshed" moment. Commentary with @laddkeith.com out in the Journal of Urban Affairs arguing that heat resilience, actions to mitigate, manage, and govern growing heat risks, should be an urgent priority. Part of a special issue on Extreme Heat in Cities doi.org/10.1080/0735...

"The Trump administration on Friday dismissed members of an independent board that oversees the National Science Foundation, which finances much of the public scientific research in the United States." www.nytimes.com/2026/04/25/u... #science #nsf

Celebrated Earth Day with an inaugural documentary screening and panel discussion with Kathy Jacobs and Fatima Luna at the new @azpm.org building this week.

Check out our @heatresilience.bsky.social April newsletter!

Honored to receive the @uarizona.bsky.social's Convergence Award for Excellence in Applied Research and Engineering! research.arizona.edu/convergence-... #uarizona #research

New comment in Nature Cities on "Spatial Planning and the Governance of Urban Greening". I argue that green infrastructure spatial planning processes are underexamined in research & practice and propose an agenda for improving them #greeninfrastructure #naturebasedsolutions Full text: rdcu.be/faKfb

New co-authored open access paper out on the role of public health during wildfires. doi.org/10.1007/s103... #publichealth #wildfire #climatechange

Okay, we can do better than this Arizona: "Officials confirmed that more than 400 patients were contacted by medical personnel at Luke Days on Saturday." www.abc15.com/news/local-n... #heatwave #extremeheat

Heat monitoring continues with the high temperatures here in the Southwest. Below are thermal photographs that visualize heat in our environment. 1 ) student thoroughfare on campus, 2) the Underwood Garden at CAPLA. 3) lot near the Underwood Garden. Find heat safety resources here: lnkd.in/gwJsC-_t

RAPID ANALYSIS: It would be ‘virtually impossible’ for the record-breaking March heat currently scorching the U.S. West to occur without climate change. We are seeing summer-like temperatures arrive exceptionally early from the Pacific to the Rockies this week. 🧵1/4

We've kept our eye on surface temperatures during this mid-March heat wave over the Western US. ☀️ These temps were taken around our work place, homes, and along our commutes in Tucson and Albuquerque. The UofA's media advisory for the heat season is out early, just like the heat! lnkd.in/gYw5etvw

It's hot out there! Tucson just broke our earliest 100°F on record today, previously set on April 11, 2025. Average first 100°F is supposed to be mid-May. Surface temperatures are much higher of course, this was a random reading of an asphalt road I took. #heatwave #azwx #extremeheat

An extreme early-season heat wave could see temperatures 20-30 degrees above average and record temperatures broken by 10 or more degrees today and tomorrow across the Desert Southwest. Jumping right into summer-like heat puts vulnerable populations at risk. Stay cool at www.weather.gov/safety/heat

♨️This week: a prolonged heat wave will push temperatures 20-30°F above normal across much of the western U.S. 🌡️Dozens of daily and all-time March records expected...including the earliest 100°F temps on record. A short 🧵

New co-authored open access @discover.springernature.com paper on a cool pavement pilot project in Tucson and its impact on pedestrian-level heat stress. link.springer.com/article/10.1... #uarizona #uazresearch #extremeheat #heatresilience #coolpavement

The seasonal anomalousness, as well sheer spatial extent, of upcoming record-shattering Western U.S. heatwave is genuinely startling. This will be associated with, by far, the strongest ridge ever observed during (at least) any Nov-Mar month. #CAwx #AZwx #NMwx #NVwx #UTwx #COwx

All signs continue to point to an exceptional, long-duration, and record-breaking to (in some cases) record-shattering March heatwave initially centered across U.S. Southwest but expanding to much broader region next week. This is effectively a full-on summer heatwave in March.

This will set back American science for a generation or more and put our national security at risk. www.nytimes.com/2026/03/13/c... #science #climatescience #ncar

Major heatwave heading to the Southwest next week - Tucson could see it's first 100°F almost a month earlier than the previous record set last year. #extremeheat #climatechange

Wrapped up the @nationalacademies.org Frontiers of Science symposium this weekend as a FoS Fellow, what a fantastic event! Leaving with new ideas and colleagues at the forefront of U.S. science. #science #nasfrontiersofscience