Ever noticed how one yawn can trigger many? Science reveals how your brain copies others, why yawns spread so easily, and ...

Global temperatures rising faster, sea levels increasing rapidly Coral die-off marks first climate tipping point, Amazon and Atlantic current at risk US climate work hit by Trump plans to cut, but ...

The message is hammered over and over, in news conferences, hearings and executive orders: President Donald Trump and his health secretary, Robert F. Kennedy Jr., say they want the government to ...

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