Scientific American Presents: Oceans: Feature Article: Exploring the Ocean Planet: "Coral reefs are also being threatened. Experts estimate as much as 36
percent of the world's hard corals have been destroyed over the past 40
years. Coral Cay Conservation in London conducts year-round, two- to 12-
week working eco-expeditions to help protect endangered coral reefs and
coastal rain forests in Belize, Indonesia, Australia and the Philippines. In
the U.S., interested community groups and dive clubs can help restore the
reefs through the assistance of the Reef Ball Development Group in Sarasota"
