News
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Science & SocietyHow the 5 riskiest U.S. cities for coastal flooding are preparing for rising tides
The five U.S. cities most at risk of coastal flooding from rising sea levels are in various stages of preparedness.
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AnthropologyAncient Maya warfare flared up surprisingly early
Extreme conflicts broke out well before the decline of the Maya civilization, researchers say.
By Bruce Bower -
EarthDecades of dumping acid suggest acid rain may make trees thirstier
Acidified soil loses calcium, which can affect trees’ ability to hang on to water.
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ClimateThe Arctic is burning and Greenland is melting, thanks to record heat
A heat wave is melting Greenland’s ice and fueling blazes across the Arctic that are pumping record amounts of carbon dioxide into the air.