Watch CBS News

coral reef

0318-ctm-coralreefmapping-phillips-1806639-640x360.jpg

Mini-satellites help map Great Barrier Reef

So-called ocean heat waves are happening more often, lasting longer, and becoming more severe. Researchers compare the phenomenon to wildfires on land. But instead of wiping out forests, they destroy kelp, sea grass, and coral reefs underwater. One group of scientists is trying to save coral reefs by cataloging all 150,000 of them worldwide. For his Climate Diaries series, Mark Philips swam along on a recent expedition to the most famous coral reef in the world.

Show More
View CBS News In
CBS News App Open
Chrome Safari Continue
Be the first to know
Get browser notifications for breaking news, live events, and exclusive reporting.