
Season 4 Preview
Preview: Season 4 Episode 1 | 30sVideo has Closed Captions
Dr. M. Sanjayan investigates the largest river restoration ever attempted in the United States.
In the 4th year of this 7-year project exploring the planet’s most threatened ecosystems, Dr. M. Sanjayan visits northern California where the largest river restoration project in United States history is aiming to bring life back to a sacred river.
Problems with Closed Captions? Closed Captioning Feedback
Problems with Closed Captions? Closed Captioning Feedback

Season 4 Preview
Preview: Season 4 Episode 1 | 30sVideo has Closed Captions
In the 4th year of this 7-year project exploring the planet’s most threatened ecosystems, Dr. M. Sanjayan visits northern California where the largest river restoration project in United States history is aiming to bring life back to a sacred river.
Problems with Closed Captions? Closed Captioning Feedback
How to Watch Changing Planet
Changing Planet is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.

Dr. M. Sanjayan On Our Climate Future
Dr. M. Sanjayan discusses how he stays optimistic about our climate future, our role in climate change, his climate heroes, and more.Providing Support for PBS.org
Learn Moreabout PBS online sponsorship(plane roaring) (dramatic music) - In the fourth year of "Changing Planet," we are focusing on two of the largest river restoration projects ever attempted.
What?
One urban.
- The river sand is undergoing a colossal detox.
- [Sanjayan] One wild and remote.
- These dams will be completely gone within a matter of months.
- Everyone knows there's hope.
- It's big.
These are stories of ambition and action for our changing planet.
(dramatic music continues)
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