 parts of Arizona, California, and Nevada. At least a dozen western cities have broken heat records in the last week, and NPR's Julia Simon reports scientists see a clear connection to climate change. When Joe Paschal moved to Palm Springs, California about 17 years ago, he'd get a break from the summer heat in the evening and mornings. It would be relatively cool, and you could enjoy it outside. That doesn't exist for us anymore, and that's a huge loss.