Skip to main content
Access to this video is a benefit for members through PBS Passport.

Up Next

Mexico’s Sierra Pinacate

Mexico’s Sierra Pinacate

Season 6 Episode 605
26:46
Costa Rica: Laboratory of the Biosphere

Costa Rica: Laboratory of the Biosphere

Season 6 Episode 606
26:46
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
Back to Show
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.

Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
Season
Pororoca: Brazil’s Famous Wave
Unlock with PBS Passport
26:46
Discover why surfers now flock from around the world to ride the Pororoca.
Brazil’s Pantanal: Wetlands and Wildlife
Unlock with PBS Passport
26:46
Explore the world's largest freshwater swamp, the Pantanal.
Father Kino and the Southwest
26:46
Learn everything about Francisco Eusebio Kino and the Mission San Xavier del Bac.
Chiapas Highlands: Mexico's Indian Empire
Unlock with PBS Passport
26:46
In Mexico's southernmost state, David finds nations apart from mainstream Mexico.
Cuba's Far East
Unlock with PBS Passport
26:46
With distinct Afro-Cuban roots, Santiago de Cuba was once Cuba's most important city.
Oregon: Violent Past and Verdant Present
Unlock with PBS Passport
26:46
More than any other of the contiguous United States, Oregon has been shaped by volcanoes.
Dominican Republic: Of Baseball, Whales, and Limping Devils
Unlock with PBS Passport
26:46
A hotbed of baseball, whalewatching, and a lively carnival, after years of turmoil.
Costa Rica: Laboratory of the Biosphere
Unlock with PBS Passport
26:46
From a biosphere to a Costa Rican rainforest reserve, scientists observe climate change.
Mexico’s Sierra Pinacate
Unlock with PBS Passport
26:46
The Pinacate Volcanic Range on the U.S.-Mexico border has a history of fire and brimstone.
Mexico City: 600 Years of Urban Glory
Unlock with PBS Passport
26:46
Mexico City’s rich cultural and ethnic history reflects this vibrant Latin American city.
Ecuador: Native Peoples Meet the Oilmen
Unlock with PBS Passport
26:46
Amazon oil means prosperity for Ecuador, but benefits for native peoples are less clear.
Havana: Inside the City
26:46
Revealing a Havana that was once off-limits, beyond the architectural first impression.
Active loading indicator