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NOVA
Season 49 · Episode 1
Arctic Sinkholes
8.055mFebruary 2, 2022
In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate.
Playback serverIf a title won’t play, switch servers.
Season 49 · Episode 1
8.055mFebruary 2, 2022
In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate.