Intense fires in California and Colorado are blanketing a large part of the West with smoke. As fire season gets longer, researchers are studying the health impact.
Around the U.S. this summer, volunteers are driving with sensors to map rising urban heat. City planners and scientists will use those maps to bring relief for people in the hottest neighborhoods.
Firefighters have been battling hundreds of blazes sparked by thousands of lightning strikes. "It wouldn't matter if we had five times more firefighters," says the battalion chief for Sonoma County.
Gov. Gavin Newsom says an area the size of Rhode Island is now ablaze in his state. He's looking for help from other states and the federal government.
The possibility of catching or spreading the coronavirus adds a new dimension of risk to the job, both on and off the front lines, and poses new threats to those seeking refuge in temporary shelter.
It's easy to feel powerless against looming challenges we cannot control — like climate change. So what should we do? Political strategist Tom Rivett-Carnac says the power is in our mindset.