Season 4 (2022)
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Episodes 4
Montana: Saving the Last Best Place
The pristine land of President Lincoln's favorite state is under threat like never before as developers, conservationists and cowboys battle for territory.
Read MoreGreenland: Breaking the Ice
Global warming is dramatically altering the landscape — and the prospects — of the world's largest island.
Read MoreCharleston: History and the Rising Tide
As surging seas and frequent floods batter America's most historic city, the fight is on to save beautiful Charleston and its storied past.
Read MoreHawaii: Protecting Paradise
The global shutdown gave Hawaii's fragile islands a chance to recover from the effects of surging tourism. Can a new balance be struck to protect the island?
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