Researchers found that the combination of heat waves and high PM2.5 pollution led to nearly 700,000 premature deaths in the past 30 years—most of which occurred in the Global South.

Sarah Derouin
Sarah Derouin is a freelance science journalist and editor who has been writing for Eos since 2017. She has a doctorate in geology from the University of Cincinnati and is a graduate of the Science Communication Program at University of California, Santa Cruz. Sarah has written for New Scientist, Scientific American, Popular Mechanics, Science, EARTH Magazine, and Mongabay. She was the 2018–19 Science Communication Fellow for the Geological Society of America and attended Congressional Climate Science Days. Beyond writing, Sarah was an acting associate editor for EARTH Magazine. She also worked behind the scenes as an assistant producer on Big Picture Science radio show, broadcast on more than 140 public radio stations. You can find more of her work at www.sarahderouin.com or connect with her on Twitter @Sarah_Derouin.
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The Interplay of ENSO and Immunity in Infectious Disease Outbreaks
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Thawing Permafrost Helped Trigger Ancient Icelandic Landslides
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Core Movements Could Be Causing Tiny Shifts in Earth’s Spin Speed
Researchers use ancient eclipse data and new machine learning techniques to understand what processes changed the length of Earth’s days over the past 3,000 years.
Oil, Gas, and COVID-19
Early in the pandemic, people living near oil and gas wells experienced higher rates of COVID-19 and related mortality compared with those with no exposure to well pollution.
Helping the Most Vulnerable Stay Cool in Extreme Heat
Choosing the ideal location for air-conditioned cooling centers in cities facing dangerously high temperatures takes good population data and community engagement.