Three days of record-breaking heat are forecast for Colorado, with some areas in the northern state and Eastern Plains expected to hit 90 degrees by Saturday, forecasters said.

A weather-forecasting AI was used to recommend routes for American Airlines flights between the US and Europe to reduce the formation of contrails, which contribute to global warming ...

Several of the Earth’s systems are changing faster than predicted as global temperatures rise, scientists say.

The COVID-19 pandemic’s early death toll was much higher than the official U.S. count, according to a new study that spotlights dramatic disparities in the uncounted deaths.