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Be Smart

How Ocean Currents Work (and How We Are Breaking Them)

Season 9 Episode 5 | 12m 38s

Ocean currents are our planet’s circulatory system, and they keep everything from ecosystems to the climate healthy. But we’re changing Earth in ways that threaten to disrupt and even break critical ocean currents like the planet-wide Great Ocean Conveyor. We explain how ocean currents work, how climate change is threatening to disrupt them, and what we can do to stop that from happening.

Aired: 04/18/21
Extras
Watch • 8:32
Nature
NATURE - Season 45
Get a sneak peek at a brand new season of NATURE on PBS.
Preview: S45 | 8:32
Watch • 2:37
American Masters
Mary Oliver: Saved by the Beauty of the World
Celebrate the life and career of Pulitzer Prize-winning poet Mary Oliver.
Preview: S40 E5 | 2:37
Daniel Tiger's Neighborhood
Look Closely Gameplay
Explore and look closely at many things in the Enchanted Garden along with Daniel Tiger.
Clip: 13:47
Daniel Tiger's Neighborhood
Stargazing Gameplay
Watch as Daniel and O the Owl embark on an out-of-this-world journey filled with learning, and fun.
Clip: 3:38
Daniel Tiger's Neighborhood
My Fish Tank Gameplay
Relax and unwind with Daniel as he watches the fish!
Clip: 9:01
Daniel Tiger's Neighborhood
Classroom Helpers Gameplay
You can be a helper along with Daniel's classmates by caring for and cleaning up the classroom.
Clip: 4:00
Daniel Tiger's Neighborhood
At the Dentist Gameplay
Get ready for the best dentist visit ever with Daniel and Dino.
Clip: 7:02
Daniel Tiger's Neighborhood
My Bedtime Gameplay
Everyone in the neighborhood has a special bedtime routine!
Clip: 8:53
Daniel Tiger's Neighborhood
Dress Up Gameplay
There are lots of different clothes that neighbors wear... Let's dress up and pretend.
Clip: 4:06
Daniel Tiger's Neighborhood
Bathrooms Gameplay
Learn along with Daniel Tiger about all the sights and sounds of different bathrooms.
Clip: 5:54
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