(Volodymyr Yakimchuk/Creatas Video+/Getty Images Plus) A seismic shift in the selection pressures acting on humans may have ...

Today's sea level rise is significant enough to slow the rotation of the planet by just over a millisecond per century.

But in the American West, it feels like we skipped right to summer. A record-smashing heat dome has settled over a huge swath of the United States, from California to Montana and down to Texas. At my ...

Ancient rocks in Sweden are acting like a “rock clock,” helping scientists finally pin down when major Cambrian climate changes happened.