There are many ways that pollution can damage reefs. Debris like this plastic bag can quickly become entangled on a coral and smother it.
We all love the beach in the summer. The sun, the sand, and the surf. But just because we're having fun, doesn't mean we can forget about safety. Get the facts about rip currents in this Ocean Today video.
NOAA's National Ocean Service
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Revised: June 22, 2015 | You are here: http://oceanservice.noaa.gov/education/tutorial_corals/media/supp_coral09b.html