A house burns at the Cocos fire in San Marcos, Calif., Thursday. Fire agencies are girding for what is already proving to be a dangerous year of wildfires, as California suffers an extreme drought. David McNew/Getty Images hide caption

itoggle caption David McNew/Getty Images

Residents photograph the burning ruins of their home in Carlsbad, Calif., that was destroyed in the Poinsettia fire, one of nine wildfires that have erupted in San Diego County. David McNew/Getty Images hide caption

itoggle caption David McNew/Getty Images

San Diego Mayor Bob Filner (D). Fred Greaves /Reuters/Landov hide caption

itoggle caption Fred Greaves /Reuters/Landov