Leap seconds have helped keep clocks synchronized with Earth’s rotation, but their time is now over – here’s why
300 glaciers have disappeared from the American West since the mid‑20th century – the survivors have a few things in common
Read More 4 minute read Earth Engineering Tech Solar geoengineering might work, but local temperatures could keep rising for years Some areas wouldn’t see immediate effects, and there could be serious consequences. Buda Mendes/Getty Images Patrick W. Keys,… byPatrick KeysOctober 14, 2022