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Levi Draheim, 10, is suing the US government over climate change with 20 other young people.

Also: fishermen in Greenland are doing better than ever, and that\\u2019s in part thanks to climate change; instead of fighting global competition, Alaska's wild salmon industry (reluctantly) embraces it; a researcher imagines what the US would look like if sea levels were to rise by two meters; solar power entrepreneurs come to Puerto Rico; plus what it\\u2019s like to fly in a plane when most of the passengers are pets.

(Image: Levi Draheim, 10, lives in Satellite Beach, Florida. Credit: PRI\\u2019s The World)