Emily L Williams

@emilywilliams.bsky.social

Climate Change & Climate Impacts. Postdoctoral Scientist @ UC Merced: https://emilylynnwilliams.wixsite.com/emily-l-williams

New paper out in @pnas.org: this year’s western U.S. snow conditions were pretty dismal, but to what extent was this snow drought due to climate change?  Paper: www.pnas.org/doi/10.1073/... (with Marianne Cowherd, Stefan Rahimi, Yuhong Ye) Thread:👇

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

Wet-bulb temperature combines heat and humidity into a measure that is linked to heat stress. Climate change has made this week's wet-bulb temperatures at least 5x more likely across many areas, with dangerous levels expected in some locations. Explore the data: csi.climatecentral.org/humid-heat

Map showing dangerous humid heat conditions on July 1, 2026 for forecast high temperatures from the GFS model. Many areas are at risk of dangerous humid heat. Map from Climate Central.Map showing the humid heat climate signal on July 1, 2026 for forecast high temperatures from the GFS model. Many areas are seeing a climate change contribution. Map from Climate Central.

New paper! It's pretty much common sense that hotter summers = more wildfire activity. But what about individual heatwaves? Our team dug into this question, and found that 42% of burned area over the past couple decades happened during or right after a heatwave. www.science.org/doi/10.1126/...

Heatwaves enable wildfire activity in the western United States

Heatwaves are associated with a disproportionate share of wildfire activity and trends in the western US in recent decades.

science.org

In an effort to shield fossil-fuel companies from legal liability & culpability for the climate-change impacts they’ve caused, conservative interests are seeking to derail a new National Academies study and report on climate-attribution methods. www.politico.com/news/2026/06...

Inside the campaign to discredit a key climate science report

An emerging field of research that can measure how much climate change has worsened individual disasters is under attack by friends of the fossil fuel industry. Billions of dollars are at stake.

politico.com

New (open access) research led by Dmitri Kalashnikov on Western U.S. sub-daily precipitation extremes, and associated trends. We both confirm familiar spatiotemporal patterns and find evidence of emerging increases in the heaviest downpours. [Thread]

Climatology and trends of annual maximum subdaily precipitation in the Western United States

Short-duration precipitation extremes can threaten public safety and infrastructure by generating flash flooding and geophysical mass wasting events i…

sciencedirect.com

Check out the 2nd annual weather and climate livestream! Tune in to hear climate scientists & meteorologists talk over the next 50 hours about how federal funding has made incredible climate research happen. I'll be talking Tuesday at 1:20PM PT / 4:20PM ET :)

Andrew Williams@andrewilwilliams.bsky.social · 2mo ago

🎉 🎉🎉 We are LIVE!!!! 🎉🎉🎉 Join us for the 1st of 50 hours of non-stop weather & climate science! www.youtube.com/watch?v=v64j...

I've got to say that I'm really disappointed in the recent discourse surrounding the RCP8.5 scenario. The lack of context and understanding is something I expected from the usual suspects, but it's frustrating to see such bad takes from people and outlets who should know better.

We're hiring a new Managing Director! If you have senior experience in operations, administration, development, communications, and program management, this New Haven-based role may be a good fit - check out the details, and please spread the word:

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climatecommunication.yale.edu