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How Louisiana's Mega Swamp Breaks Hurricanes

From PBS NATURE and Atlas Obscura, Untold Earth is a documentary series dedicated to unpacking the stories behind North America’s strangest, most unique natural wonders.

How Louisiana's Mega Swamp Breaks Hurricanes

Season 2 Episode 2 | 7m 53s | CC

In the Atchafalaya Basin—the largest river swamp in the U.S.—ancient cypress trees act as natural barriers against hurricanes and extreme weather. Spanning a million acres, these nearly indestructible trees have protected Louisiana's coast for thousands of years. How does this million-acre ecosystem protect Louisiana’s communities, and how can we protect it?

Untold Earth

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