Across the country, in red and blue states, everyday people, local groups and government officials are making creative plans ...

In South Carolina, an air quality alert is in effect until noon Thursday for the towns and cities of Mountain Rest, Rocky ...

Boulder could see 28 days over 95 degrees and nearly 200 high fire-risk days annually. By 2050, those numbers rise even ...

The city of Phoenix, Arizona, flirted with its first 100-degree day of the year on Tuesday, almost a month earlier than the ...

Nearly 500 buildings in the state capital get their heat from a clean, renewable source located deep in the ground.

CNN is tracking extreme heat conditions for Americans each day. See where the risks are greatest — and where high temperature records might be broken.

With a few notable areas where the orange and red tide receded, like the hills above Berkeley and Oakland, territory deemed “high” or “very high” hazard exploded across the state, increasing by 168% ...

Energy-efficiency and clean energy projects like insulation, solar, and heat pumps can bring you thousands in federal and ...