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In the America's with David Yetman
Our Warming Oceans: Biosphere to Bahamas
Season 6
Episode 604
In the Arizona desert, scientists study a small ocean at Biosphere II facility, where researchers measure sea changes under controlled conditions. But the real ocean is uncontrolled and vast. David journeys to the Bahamas to join researchers in caves and in reefs who are making startling findings about changes in climate and their effects on our oceans.
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26:46
Our largest national park has become an important natural laboratory.
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26:46
The once-great Colorado River faces a dried-out future as more rely on its resources.
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26:46
Phantom Ranch, accessible only by trail, is the Grand Canyon's sole permanent settlement.
26:46
Boating through the Grand Canyon provides a setting for reflection on the Colorado River.
26:46
One of the world's greatest cities deals with falling water tables and sinking earth.
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26:46
Explore the volcanoes created the Galápagos Islands.
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26:46
Discover Cuba's capital city, Havana.
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26:46
Explore the never-ending race to survive climate changes in the Galapagos Islands.
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26:46
Travel along the 500-mile-long Blue Ridge Parkway, part of our national park system.
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26:46
Explore how cities and countryside adapt to drought in the American Southwest.
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26:46
Explore the states of Oaxaca and Chiapas in southern Mexico.
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26:46
Explore the old town of Baracoa and Cuba's vast sugar cane fields.