August 8, 2018

Nighttime temperatures across much of California were record warm in July 2018, part of an accelerating warming trend in the state since the start of the twenty-first century. 

August 1, 2018

As part of the State of the Climate in 2017 report, experts describe a record three-year-long episode of mass coral bleaching at tropical reefs worldwide. Previous global bleaching events required the presence of El Niño, but the devastating 2014–2017 event began before El Niño emerged and continued long after it ended—implicating human-caused global warming in the mass die offs.

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