This National Resources Defense Council (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. The film, featuring Sigourney Weaver, originally aired on Discovery Planet Green. 

Additonal videos on NRDC YouTube channel. 

If you have heard about Cap & Trade, but are not sure how it works (or who benefits), this is an alternative viewpoint to the idea that it is a solution to climate change.  From activist Annie Leonard who gave us the Story of Stuff.  http://storyofcapandtrade.org

Then President-elect Barack Obama in a speech (video) to the Global Climate Summit, November 18-19, 2008 Beverly Hills, California, promising "a new chapter of American leadership on climate change."

See also, Climate Change Talks, President Obama, 2009, here.  He speaks on Climate Change, 2013, here. President on Carbon Pollution and Power Plants here, May 2014.

The Heat Is On - Pulitzer Prize-winning journalist Ross Gelbspan, author of The Heat Is On: The High Stakes Battle Over Earth's Threatened Climate, provides documentation on how global warming is real and increasing. He exposes the campaign by oil and coal interests, teamed with conservative politicians, to confuse the public on the issue. His book was published in 1997 as Mr. Gelspan was early in getting people to confront the facts of climate change.