How scientists are working to save corals (Part 2)
01:50Why protect coral reefs? Scientists say they help provide 70 percent of the oxygen we breathe, support a quarter of all aquatic life and form a vital buffer against coastal erosion.
Why protect coral reefs? Scientists say they help provide 70 percent of the oxygen we breathe, support a quarter of all aquatic life and form a vital buffer against coastal erosion.
