Associated Press: California's ongoing drought could complicate the state's effort to combat global warming. The San Francisco Chronicle reports Sunday (http://bit.ly/1qTT5Ej ) that a drought stretching on for years could slash the amount of clean energy collected from the state's dams and send emissions spewing from other sources. State officials are pushing utility companies by 2020 to obtain 33 percent of their electricity from renewable sources that also include wind and solar power. California is in its third...