Articles by Reporter Sachi Kitajima Mulkey
Sachi Kitajima Mulkey is a Grist reporter covering the intersection of climate change, policy, politics, and culture. She was previously the 2024-2025 climate news reporting fellow at Grist, and a 2025-2026 reporting fellow on the New York Times climate desk. Her work has also appeared in The Nation, The Japan Times, Atmos and others, and she has made guest appearances on PBS Newsweekend, Radiolab, and The Weather Channel.
All Articles
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![bleached white coral reefs are visible below a surfline with a moutain in the distance]()
![bleached white coral reefs are visible below a surfline with a moutain in the distance]()
Finally, an answer to why Earth’s oceans have been on a record hot streak
A new study finds that the rate of ocean warming has more than quadrupled over the past 40 years — and pinpoints why.
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What sparks a wildfire? The answer often remains a mystery.
The source of more than half of all wildfires in the Western U.S. remains unknown. AI could change that.
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What made the Los Angeles wildfires so monstrous
Powerful winds and extra-dry vegetation have fueled what may become the costliest wildfires on record.
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![Three petri dishes — one shaped like a house — containing bacteria]()
![Three petri dishes — one shaped like a house — containing bacteria]()
Scientists are looking for CO2-gobbling microbes in extreme environments — like your home
How the microorganisms lurking in your dishwasher could turn out to be climate superstars.
