ACID TEST: This groundbreaking NRDC documentary explores the startling phenomenon of ocean acidification, which may soon challenge marine life on a scale not seen for tens of millions of years. Featuring Sigourney Weaver. Directed by Tristan Bayer / EarthNative, and Daniel Hinerfeld / NRDC.

Learn more about Ocean Acidification and watch "Acid Test" at acidtestmovie.com

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