Access to this video is a benefit for members through PBS Passport.
Up Next
Back to Show
Watch Preview
Changing Seas
Maug’s Caldera: A Natural Laboratory
Season 8
Episode 803
Visit the remote Pacific, the islands of Maug. Formed by an ancient volcano, shallow hydrothermal vents are found close to coral reefs inside the submerged caldera. These vents emit levels of CO2 that can be expected in the world’s oceans by the end of the century, making these waters a natural laboratory for scientists studying the impacts of ocean acidification on coral reefs.
Support Provided By
Unlock with PBS Passport
27:02
Scientists spend a month in the Galapagos Islands to conduct research.
Unlock with PBS Passport
26:54
The world’s largest known aggregation of whale sharks occurs just off the coast of Cancun.
Unlock with PBS Passport
29:33
Scientists work to identify and link a devastating coral disease to a human pathogen.
