The media is once again attempting to portray the current California drought as historically unprecedented. See: Scientists say it’s been 500 years since California has been this dry & Californian water source at 500-year low: “We should be prepared for this type of snow drought to occur much more frequently because of rising temperatures,” lead author Valerie Trouet, a professor at the University of Arizona, said in a statement. “Anthropogenic” –- or manmade –- global warming “is making the drought more severe,” she added.