Heat

Before most residents have acclimated to the heat or set up home cooling systems, temperatures are rising to unseasonably high levels.

Hot days and polluted air may be doing more than making people uncomfortable — they could also affect mental health. A new study from the University of Utah finds that short bursts of extreme heat, combined with certain types of air pollution, are linked to an increased risk of suicide.

Some cities are predicted to near 100 degrees.

A new report finds that rising temperatures are making droughts across the Mountain West and Southwest even worse — and longer-lasting.

A new scientific analysis shows that fall temperatures are rising across the country because of climate change, especially in the Mountain West. More than simply a delay in sweater weather, experts say this trend has more serious impacts.

An analysis of federal data shows a 41% rise nationally in emergency room visits due to extreme heat incidents last year. It’s hitting vulnerable Americans the hardest.

They say extreme heat and other climate impacts should be considered in monetary policy-making.

A new report finds multi-day streaks of extreme heat are becoming stronger and lasting longer across the U.S., especially in Mountain West states. Experts warn that heatwaves are not only a health concern, but can strain energy resources.

Steamboat Springs can close the Yampa River — a hotspot for tubing, swimming and fishing — when it's too low and hot.

The organizations delivered a letter to the National Governors Association, which meets this week in Colorado Springs, Colo.