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Oregon: Violent Past and Verdant Present

Oregon: Violent Past and Verdant Present

Season 6 Episode 608
26:46
Cuba's Far East

Cuba's Far East

Season 6 Episode 609
26:46
Chiapas Highlands: Mexico's Indian Empire

Chiapas Highlands: Mexico's Indian Empire

Season 6 Episode 610
26:46
Slickrocks and Monuments in the Four Corners

Slickrocks and Monuments in the Four Corners

Season 10 Episode 1001
26:46
Ancient peoples of the Colorado Plateau

Ancient peoples of the Colorado Plateau

Season 10 Episode 1002
26:46
The Northern Jaguar Preserve

The Northern Jaguar Preserve

Season 10 Episode 1004
26:46
As the Waters of Lake Powell Recede

As the Waters of Lake Powell Recede

Season 10 Episode 1007
26:46
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In the America's with David Yetman

Costa Rica: Laboratory of the Biosphere

Season 6 Episode 606

Researchers at Biosphere II in Arizona have re-created tropical rainforest in a closed environment to study the effects of climate change. Scientists compare that artificial environment with a tropical rainforest reserve in Costa Rica, a living laboratory where scientists record the effects of global warming on the forest and its dwellers.

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Brazil’s Butantan Institute
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26:46
The Butantan Institute in São Paulo houses venomous creatures that protect human lives.
Re-claiming the Gulf in Baja California
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26:46
The arrival of crowds and developers threaten unusual features of Baja California.
Snakes and Culture in the Amazon
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26:46
Native cultures view snakes as spiritually significant elements of nature.
Wrangell-St. Elias National Park
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26:46
Our largest national park has become an important natural laboratory.
The Lower Colorado River
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26:46
The once-great Colorado River faces a dried-out future as more rely on its resources.
The Depths of the Canyon and its Offspring
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26:46
Phantom Ranch, accessible only by trail, is the Grand Canyon's sole permanent settlement.
Lee’s Ferry and Into the Depths of the Grand Canyon
26:46
Boating through the Grand Canyon provides a setting for reflection on the Colorado River.
Tlaloc's Revenge: Mexico City's Hydrological Heritage
26:46
One of the world's greatest cities deals with falling water tables and sinking earth.
Galápagos: Volcanoes and nature on the island.
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26:46
Explore the volcanoes created the Galápagos Islands.
Havana: Cultural treasure house of the Caribbean
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26:46
Discover Cuba's capital city, Havana.
Galápagos: The great climatic seesaw
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26:46
Explore the never-ending race to survive climate changes in the Galapagos Islands.
The Blue Ridge Parkway: From Virginia to North Carolina
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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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