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UV scans uncover natural varnish that may have preserved ancient Chauvet Cave drawings

Tucked away inside a limestone cave in southeastern France lies some of the oldest artwork in existence. Known as Chauvet Cave, the site is so histor…

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U.S. moves to weaken methane limits on oil and gas producers

U.S. President Donald Trump announced Tuesday a sweeping rollback of rules that stop oil and gas producers from emitting methane, a greenhouse gas su…

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technology

Study finds heat waves speed snowmelt substantially, but rivers respond unevenly

A new study by researchers at Montana State University has found that heat waves substantially accelerate the melting rate of mountain snowpack; howe…

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Eaton Fire may have exposed nearly 7 million people to elevated lead levels

Caltech scientists have published the first detailed analysis of the atmospheric particles in the smoke plume from the Eaton Fire that devastated muc…

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