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Climate

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Chixculub impact illustration

START FROM SCRATCH  The asteroid that hit Earth about 66 million years ago, wiping out most of the planet’s life, also spewed carbon dioxide into the air and heated up the climate for millennia, a new study suggests.

rice paddy

FACING THE FUTURE  White pipes in a Japanese rice paddy are designed to release extra CO2, creating a little patch of simulated future atmospheres to see how that affects crop nutrients.

honeybee

BUG LOSS  Insects, including honeybees (shown), would see their geographic ranges shrink the most under higher future warming scenarios.

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