Six thousand tons of sunscreen wash through U.S. coral reefs every year.

Coral reefs worldwide provide divers with a colorful tour of the undersea world. Many divers submerge lathered in sunscreen, each year, leaving 6,000 tons of sunscreen washing through U.S. reefs. But how does this impact how corals protect themselves from sunlight? Learn more on NSF's "The ...This is an NSF Multimedia Gallery item.
Source: NSF Multimedia Gallery - Category: Science Source Type: video