Summary: Coral reefs are vibrant ecosystems packed with spectacular underwater life that protect coastlines and provide food and income for millions of people. But coral reefs are at risk. How threatened are reefs today? Why are they in trouble? And what hope is there for the future of reefs? In this special podcast, Helen Scales meets the people behind Reefs at Risk Revisited, a groundbreaking new study that draws a global map of reefs and the problems they face today.
