Articles by Sachi Kitajima Mulkey
Sachi Kitajima Mulkey is a science and climate journalist. She was the 2024-2025 climate news reporting fellow at Grist.
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.
