An unprecedented 82 percent of California is in an “extreme drought,” according to the latest U.S. Drought Monitor report released last week. Of that, 58 percent of the state is in an “exceptional drought” — the driest conditions possible. Record-low rainfall has sent rivers, lakes and water reservoirs to their lowest levels in decades—threatening the water supply of many cities. The unusually dry conditions have increased the risk of wildfires, which have already ravaged parts of the state — most recently an area near Yosemite National Park. MORE