“Little Evidence” That San Francisco Is Losing Its Cool Due to Global Warming

(p. 14) Longtime residents of San Francisco have grown weary of explaining to out-of-town visitors that July and August can be fairly cold in the city. Some San Franciscans live in dread of hearing, again, the apocryphal Mark Twain quotation about the coldest winter of the author’s life being a summer in San Francisco.

Now, though, in a time of punishing summer heat waves, when weather maps urgently flash red across the country, the city is reassessing what was once seen as a liability: its chilly Pacific breezes and fog.

. . .

San Francisco’s summer fog and cool breezes are created by a complex interaction between the atmosphere and ocean, a process that pumps cold water from the depths to the surface and acts as an air-conditioner, according to Patrick Brown, a Bay Area climate scientist at the Breakthrough Institute, a nonprofit organization.

The long-term effects of climate change on San Francisco’s cool summers are unclear, Mr. Brown said, but there is little evidence that the weather systems that keep the city cooler than inland areas will radically change any time soon. In other words, summers in San Francisco are likely to remain crisp and refreshing for many years to come.

For the full story, see:

Thomas Fuller and Holly Secon. “As Most Spots Swelter, San Francisco Is Chill(y).” The New York Times, First Section (Sunday, August 28, 2022): 14.

(Note: ellipsis added.)

(Note: the online version of the story has the date August 27, 2022, and has the title ‘Come for the Golden Gate Bridge and Cable Cars. Stay for the Summer Shivers.”)

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