"ALAMEDA COUNTY, Calif. — If you think the era of big dam building is over in America, check out the Calaveras project."

"Official reports released Monday say the catastrophic damage to Oroville Dam’s main spillway probably stemmed from swift water flows under the concrete chute, which was cracked and of uneven thickness."

"Federal officials have concluded that infrastructure for a proposed hydropower project — which would tap billions of gallons of groundwater in the California desert, just outside Joshua Tree National Park — wouldn't be especially harmful to the environment."

"One of the worst droughts in California history has officially ended, Governor Jerry Brown declared on Friday, but not before it strained the state's farm economy and threatened water supplies for millions of residents."

"State officials said Thursday that they hope to sign a contract for reconstruction of the heavily damaged Lake Oroville spillway by April 17."

"A state appeals court on Thursday ruled California's high profile market system for reducing greenhouse gas emissions does not amount to an illegal tax, a decision that could lift a pall over the so-called cap-and-trade program's marketplace for buying and selling pollution allowances."

"In another U-turn from existing environmental policy, the Trump administration has eased the way for a controversial California desert water project that President Obama’s team had blocked."

"Rain-fed wildflowers have been sprouting from California's desert sands after lying dormant for years — producing a spectacular display that has drawn record crowds and traffic jams to tiny towns like Borrego Springs."

"Inspectors from the U.S. Environmental Protection Agency found numerous safety violations at the Torrance oil refinery during reviews of the plant last fall, according to a report released Monday."