How firefighters are contending with extreme heat in California

When a wildfire started in the mountains of Fresno County late last month, much of California was on the cusp of a heat wave that would go on to smash records both for its intensity and duration. Over the next week and a half, as the Basin fire swelled to more than 14,000 acres and temperatures in the area reached 112 degrees, at least nine firefighters were treated for heat-related illness….