Ars Technica: Californias governor has provided presidential hopeful Dr. Ben Carson with overwhelming evidence of climate change, something that the Republican candidate claimed does not exist.
Last week, Carson appeared in San Francisco as part of his campaigning schedule. At an event, he addressed why the "climate change debate" remains, in his view, "irrelevant." In a tweet published later in the week, Gov. Jerry Brown (D) posted a picture of this letter sent to the retired neurosurgeon.
Dear Dr. Carson,...