Wildlife officials say adult bears without cubs usually begin coming out of their dens in mid-March. Mothers with cubs come out later, usually from mid-April to early May.
Biologists say the bears will eat emergent grasses as well as dead and decaying animals.
But they'll also key in on easy pickings from trash. Biologists are warning people to secure their garbage, to keep garage doors shut, car doors locked and all sources of food away from bears.
Officials remind people that it's illegal to feed any big game mammal.
About 9 in 10 of the produce tested for pesticides at California grocery stores, farmer's markets and other outlets had little or no residue, according to the state Department of Pesticide Regulation's 2016 survey.
Gov. Brown attended the first UN Climate Conference held since President Donald Trump said he will withdraw from the Paris Climate Accord.
A year after California enacted a statewide ban on single-use plastic bags, environmental groups say early data show a significant dip in plastic trash.
A collection of environmental, fishing and whitewater groups recommends changes to dam management in a new report, issued in response to the failure of the main spillway at Lake Oroville in February.
Traditional methods to cool cows use 11,000 gallons of water per cow per year. UC Davis researchers are trying out new techniques that use less resources.