By Bettina Boxall, Los Angeles Times
April 26, 2011
Precipitation and runoff in California’s major river basin will not fall dramatically with climate change, according to a new federal study that shows rising temperatures will have an uneven effect on the West’s water supplies.
A Department of Interior report released Monday agrees with other analyses that have found climate models are better at predicting temperature rises (ROFLMAO) and an accompanying decline in spring snowpack than they are in projecting future precipitation and stream flow levels.
Temperatures could rise 5 degrees to 7 degrees this century (ROFLMAO) , increasing evaporation, and the spring snow pack will drop sharply in much of the West, changing the timing of peak runoff, which is crucial for the state’s irrigated agriculture.
Four years ago ….
A permanent drought seen for Southwest
April 06, 2007 , Los Angeles Times
The driest periods of the last century — the Dust Bowl of the 1930s and the droughts of the 1950s — may become the norm in the Southwest United States within decades because of global warming, according to a study released Thursday.
The research suggests that the transformation may already be underway. Much of the region has been in a severe drought since 2000, which the study’s analysis of computer climate models shows as the beginning of a long dry period.