How scientists are working to save corals (Part 2)
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.
How scientists are working to save corals (Part 1)
02:12How scientists are working to save corals (Part 2)
01:50Exclusive: At sea for the ‘fourth battle of the Atlantic’ (Part 1)
02:09Exclusive: At sea for the ‘fourth battle of the Atlantic’ (Part 2)
02:13Extended interview: 'Wicked' star on going from finance to Broadway (Part 1)
04:23Extended interview: 'Wicked' star on going from finance to Broadway (Part 2)
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