Next Wednesday night a new, groundbreaking documentary from NRDC featuring Sigourney Weaver - ACID TEST: The Global Challenge of Ocean Acidification - will premiere on Discovery's Planet Green.

ACID TEST explores "the other carbon problem" - the startling phenomenon of ocean acidification, which could challenge the health of the ocean ecosystem on a scale that has not occurred for tens of millions of years.

Burning fossil fuels creates carbon dioxide pollution - which is not only the primary cause of global warming - but also profoundly alters ocean chemistry, rapidly making the water more acidic. The rising acidity may soon kill off critical species to the ocean food chain.

ACID TEST explores this issue through animations, stunning ocean views, and a range of expert voices - including NRDC Senior Scientist Lisa Suatoni. NRDC's own Daniel Hinerfeld co-directs.

Check out this out-take from the film below, and tune-in with me Aug. 12 - or catch it later this month when it re-airs!

Acid Test premieres on Discovery Planet Green on Wednesday, August 12 at 10:30 p.m. and re-airs throughout the month. For showtimes and more information go to: http://www.nrdc.org/acidtest.

• Pass a Strong Climate Bill: Fight the pollution that causes ocean acidification and global warming - urge your senators to support strong climate and energy legislation.
• Pass a National Healthy Oceans Act: Tell your Representatives to support a Healthy Oceans Act, like a Clean Air Act for our air or a Clean Water Act for our water.