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Changing Seas

Toxic Algae: Complex Sources and Solutions

Season 9 Episode 902 | 27m 13s

Lake Okeechobee was once the blue heart of Florida, pumping fresh water down to the Everglades and beyond. Now that a dike and canal system control its flow, water releases from the lake periodically creating putrid mats of blue green algae. Scientists think water pollution is to blame, and if something isn’t done about it there could be irreparable damage to the environment.

Aired: 11/06/17
Major funding for this program was provided by The Batchelor Foundation, encouraging people to preserve and protect America’s underwater resources. Additional funding was provided by The Parrot Family Endowment for Environmental Education. Distributed by American Public Television.
Extras
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The American Revolution
'We Would Not Have Had a Country Without Him'
Historian Annette Gordon-Reed. The American Revolution premieres November 16.
Preview: 0:20
The American Revolution
Inside Look: Making The American Revolution
Step behind the scenes of Ken Burns’s new film to see how The American Revolution came to life.
Special:
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The American Revolution
Inside Look | Finding Facts
The filmmakers discuss how the story of The American Revolution came together.
Clip: 3:57
Watch • 3:37
The American Revolution
Inside Look | People Just Like Us
The filmmakers on how understanding the people of the Revolution can help us understand who we are.
Clip: 3:37
Watch • 6:29
The American Revolution
Inside Look | Making the Revolution
The filmmakers discuss how they crafted imagery to help tell the story of the American Revolution.
Clip: 6:29
Watch • 0:30
The American Revolution
'The American Revolution Changed The World'
Historian Stephen Conway. The American Revolution premieres November 16.
Preview: 0:30
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The American Revolution
'One Common Cause'
Historian Christopher Brown. The American Revolution premieres November 16.
Preview: 0:30
Watch • 0:30
The American Revolution
'The Extraordinary Thing About the Patriot Side'
Historian Jane Kamensky. The American Revolution premieres November 16.
Preview: 0:30
Watch • 0:33
The American Revolution
Saratoga: A Psychological Turning Point
Historian Stephen Conway on the psychological impact of Saratoga on the British.
Clip: 0:33
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