CNN CNN International April 2, 2015 05:20:00
Record. we're seeing the hottest temperatures on record in 2014, the warmest winter on record this year. so this is a bad event. what our research that's just been published this month shows is that this is part of climate change, that the human cause of global warming is increasing the temperature in california, which is increasing the risk that when low precipitation periods occur, that it's really warm along with that low precipitation and we know with high confidence that that combination is what produces severe drought. so what we're seeing is the express of a new climate regime in califo...