Snowfall in the Rockies that feeds the Colorado River has fallen precipitously. Burea of Reclaimation statistics show in 2013 the runoff was 47% of normal. Colorado River basin temperatures are projected to increase by five to six degrees (℉) during this century; mean annual runoff is expected to decrease 8.5% by 2050. Nearly all the water in Lake Mead comes from this snow pack runoff. Governor Jerry Brown of California told the press at Echo Summit in the Sierra Nevada Mountains, "People should realize we are living in a new era. The idea of your nice little green lawn getting lots of water every day, that's going to be a thing of the past."