In climate news, thousands of people were forced to evacuate their homes in Utah over the weekend as a scorching heat wave helped fuel a fast-growing wildfire near the mountain town of Park City.

In Northern California, the Dixie Fire grew to more than 550,000 acres. It’s now the largest single fire ever observed in U.S. history, surpassing the Bootleg Fire in Oregon, which has burned over 410,000 acres since it began in July.