James Cameron, Gov. Schwarzenegger Speak Out Against Prop 23 In New Ad (VIDEO)

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Appearing at a joint webcast this afternoon, California Governor Arnold Schwarzenegger and filmmaker James Cameron unveiled a new ad urging voters to reject Proposition 23 on next Tuesday's ballot. The duo have been outspoken critics of the initiative, which would repeal AB 32, California's Global Warming Act of 2006. In the ad, Cameron calls Prop 23 "the ultimate real-life disaster...terminating our air pollution standards, sinking our clean energy economy, and exploiting out environment for profit."

WATCH the new ad below