‘It can become unlivable.’ How Jerry Brown is planning for raging fires and extreme heat

Parfrey is part of a regional climate action and sustainability collaboration at the University of California, Los Angeles, where professor Alex Hall led a groundbreaking study that found climate change will push up temperatures by an average of 4 to 5 degrees by the middle of the century. The number of days where temperatures climb above 95 degrees will roughly double on the coast, triple in downtown Los Angeles and quadruple in the valley.