It's Blog Action Day today - an event that brings together more than 6,900 bloggers to take online action on global warming. This is the largest single social action event on the web and NRDC is a partner.

As I was putting together this post in honor of the day, I was distracted by my daily alert email from my favorite wine shop in the city. It encouraged me to pick up a bottle from a Long Island winery that uses primarily wind and solar energy to power their estate. Intriguing!

And what would pair well with a tasty, local, green-powered red on global warming action day, I thought?

How bout NRDC's new documentary on ocean acidification - Acid Test? The film airs on Discovery Planet Green throughout the month and is now available online in full at www.acidtestmovie.com.

Award winning actress Sigourney Weaver, known for her narration of the stunning Planet Earth series, narrates. The short film is visually striking, entertaining and educational all in one, and fitting to mention during today's event as it explores a phenomenon some have dubbed "the other carbon problem."

We all know carbon dioxide emissions are to blame for global warming - but did you know they're also making our seas more acidic, threatening catastrophic changes to the entire ocean food web? Sigourney blogged about it on the Huffington Post yesterday, and summed up the takeaway so well I have to quote her here:

"The scientists are freaked out, but they still have hope, as do millions of other Americans. Hope that our policy makers will listen to the scientific facts, take them to heart and begin America's transition to a clean energy economy. An economy based on efficiency and renewable power that will build a workable future for all living things."

Fortunately, our policymakers in Congress are poised to do just that - as the clean energy and climate bill makes its way through the Senate this fall.

Join me in taking part in today's online action day by telling your Senators you want them to make it law here. And then feel free to reward yourself this evening with a local wine and some quality down time with our film - you've earned it.