"Once again, the temperature record has been shattered — 2024 was the hottest year since record keeping began in 1880."

The last two years saw average global temperatures exceed a critical warming limit for the first time, Europe's climate monitor said Friday, as the UN demanded "trail-blazing" climate action.

The Lower 48 states had their hottest year on record in 2024, in keeping with global trends. Why it matters: The year featured numerous extreme weather events in which record warmth played a role — from the obvious,

NOAA has declared 2024 the warmest year on record for the US, with more than 300 million people experiencing a top-10 warmest year.