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PBS News Hour
Has the U.S. set realistic goals to combat climate change?
To discuss the ambitions of the climate summit and the very real challenges to President Joe Biden's plans, we're joined by Michael Mann, a climate scientist and professor of atmospheric sciences at Penn State University. He's the author of, "The New Climate War: The Fight to Take Back Our Planet." This reporting is part of the international journalism collaborative called "Covering Climate Now."
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