A sweeping new study reveals that humanity has already pushed 60% of Earth’s land outside its safe biosphere zone, with 38% in a high-risk state. By analyzing centuries of data, researchers mapped how ...

A seemingly small planetary neighbor may play a larger role in Earth’s climate than previously thought. Mars is only about ...

Ancient ice records show Earth’s oceans cooled over millions of years despite stable greenhouse gases, highlighting the role of oceans.

Few geological features on Earth carry as much climatic weight as permafrost. The frozen soils encircling the Arctic from Alaska to Canada to Siberia store twice as much carbon as currently resides in ...

BELEM, Brazil (AP) — The world's climate leaders are conceding that Earth's warming will shoot past a hard limit they set a decade ago in hopes of keeping the planet out of a danger zone. But they're ...