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Yosemite ‘firefall’ slows to a trickle amid drought
A natural spectacle called "firefall" happens each February in California's Yosemite National Park when light from the setting sun strikes the park's Horsetail Falls, making it look like it's ablaze with fire. But this year the waterfall slowed to a trickle. NewsHour Weekend's Christopher Booker spoke with University of California Berkeley climate scientist Patrick Gonzalez to learn more.
