Human-amplified climate change is making it more likely that extreme heat lasts longer into fall, as record-breaking temperatures for the month of October blanket much of the western U.S.
An unprecedented late season heat wave is in effect in the West, with October temperatures broken in major cities, several of which are still experiencing triple-digit heat.
On Tuesday, Palm Springs reached 117 degrees Fahrenheit; Phoenix hit 113 degrees while Tucson got up to 105 degrees…