Comment Re:trees cut down in the cities (Score 1) 155
Your information is incorrect. There was a small section of coastal California that had a Mediterranean climate long before Europeans showed up. This area was expanded into desert regions by importing water from other areas.
Your final sentence seems to imply some kind of link between desert and warming, but I'm not sure what link you think there is. There are deserts in the world which are frozen all or most of the year.