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Citing a “long-term systemic failure” at the California Department of Water Resources, independent forensic investigators released their final report Friday on the nearly-catastrophic emergency last February at Oroville Dam. In a 584-page report on the disaster at America’s tallest dam, the investigative team blamed a “complex interaction of relatively common physical, human, organizational and industry factors” for the failure of the dam’s main flood-control spillway Feb. 7. The giant crater that erupted in the concrete chute set off a slow-motion emergency that culminated five days later with the evacuation of 188,000 downstream residents.

You might wish you had as much power to affect the environment and the economy as the delta smelt. Enemies have blamed the tiny freshwater fish for putting farmers out of business across California’s breadbasket, forcing the fallowing of vast acres of arable land, creating double-digit unemployment in agricultural counties, even clouding the judgment of scientists and judges.

Southern California’s Salton Sea, the largest lake in California, has seen its share of ups and downs since it was accidentally created in 1905 by Colorado River floodwaters. Now, already badly polluted by chemicals from agricultural irrigation runoff, which provides the lake’s inflow, the surrounding shoreline is in danger of becoming a toxic blight.

The Trump administration, teeing up a fight with California regulators, is trying to pump more water through the fragile Sacramento-San Joaquin Delta to the southern half of the state despite fresh evidence of the estuary’s shrinking fish population. A proposal by the U.S. Bureau of Reclamation to “maximize water deliveries” represents the administration’s first concrete effort to make good on a promise Donald Trump made while campaigning for the presidency in Fresno, where he vowed to deliver more water to San Joaquin Valley farmers and derided protections for endangered fish species.

Californians thirsting for relief from a parched, nearly rainless start to the state’s wet season are finally getting some relief this week. The single meteorological factor contributing to one of the driest final three months of the year on record in California has been a stubborn area of high pressure aloft. Nicknamed the “ridiculously resilient ridge” during the heart of the state’s exceptional drought earlier in the decade, this atmospheric roadblock has steered the Pacific storm track well north of California much of the fall and early winter so far.