Mountain regions around the world are heating up faster than the lands below them, triggering dramatic shifts in snow, rain, and water supply that could affect over a billion people. A major global ...

All nations of the world had homework this year: submit new-and-improved plans to fight climate change. But the plans they handed in “have barely moved the needle” on reducing Earth’s future warming, ...

The idea began in California’s Sierra Nevada, a towering spine of rock and ice where rising temperatures and the decline of snowpack are transforming ecosystems, sometimes with catastrophic ...

This year’s Conference of the Parties, the annual United Nations meeting meant to avert catastrophic climate change, was subject to a ham-fisted metaphor. On Thursday, the Brazilian venue hosting the ...

Dangerous weather events typically associated with extreme global warming could become more frequent even under moderate levels of heating, a new study finds. Deadly floods in cities and catastrophic ...