Back to Show
Watch Preview
NOVA
Reef Rescue
Season 48
Episode 4
If oceans continue to warm at the current pace, coral reefs could be wiped out by the end of the century. But scientists from around the globe are rushing to help corals adapt to a changing climate through assisted evolution.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By

Unlock with PBS Passport
53:05
Big quakes are inevitable, but can we prevent their devastation?

Unlock with PBS Passport
52:52
Can markets be rational when humans aren't?

Unlock with PBS Passport
1:42:48
Seven doctors, 21 years... Saving lives is only part of the story.

Unlock with PBS Passport
53:12
The "Car Talk" guys look for a new breed of clean, fuel-efficient vehicles.

1:52:42
The story of how African-American Percy Julian defied the odds to become a famous chemist.

Unlock with PBS Passport
52:31
What led to the devastating floods that Hurricane Katrina unleashed on New Orleans?

Unlock with PBS Passport
1:49:01
The story behind the world's most famous equation, e=mc2

Unlock with PBS Passport
53:31
Learn about the elements and their roles in the universe.

Unlock with PBS Passport
53:31
Journey back to the beginning of everything: the universe, Earth, and life itself.

Unlock with PBS Passport
50:52
Journey back to the beginning of everything: the universe, Earth, and life itself.

Unlock with PBS Passport
51:52
Journey back to the beginning of everything: the universe, Earth, and life itself.

Unlock with PBS Passport
53:50
An American combat hospital mobilized in Iraq faces a daily drama of wartime treatment.