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The Los Angeles River is swollen by storm runoff during an atmospheric river storm on Monday. Photograph: Mario Tama/Getty Images
The Los Angeles River is swollen by storm runoff during an atmospheric river storm on Monday. Photograph: Mario Tama/Getty Images

climate change, nature & conservation

Daniel Swain for National Geographic — What is the ARkStorm? California’s worst nightmare, potentially

UCLA climate scientist Daniel Swain discusses what an ARkStorm is for National Geographic, explaining the mega-storm’s likelihood and plausibility. “It could happen this year, it could happen next year, it might not happen for 50 or 60 years,” Swain said.