The reason behind San Francisco’s unusually cold early summer this year is increasingly vulnerable to human-caused global warming. Northern California’s temperate, Mediterranean-like weather makes it among the most sought-after regions to live in anywhere in the United States. San Francisco, specifically — a 49-square-mile city with the nation’s second-densest human population — is riddled with […] The post San Francisco Is Having Its Coldest Summer in Decades. That’s Alarming. ...
