For the first time, the monthly average of carbon dioxide in the atmosphere has surpassed 430 parts per million at the Mauna Loa Observatory in Hawaii. The May 2025 number is higher than it's ever ...

Workers grind algae at an algae milling plant, as the health of the country's marine forests is threatened by warming oceans and pollution, in Taltal, Chile June 12, 2025. REUTERS/Pablo Sanhueza ...