The ad opens with clips of the storm, then cuts to Romney saying "I'm not in this race to slow the rise of the oceans or to heal the planet."

"Americans always come together to take on our toughest challenges, and leaders lead," the narrator then says over a photo of President Obama hugging a hurricane survivor as New Jersey Gov. Chris Christie (R) looks on. "It's time to act on climate change."

The storm has reinserted climate change into the national political discussion after a campaign during which both sides largely avoided the topic. Romney has long called for more energy production as a central part of his campaign and attacks Obama for his "war on coal." The president, who ran hard on the issue in 2008, has avoided it because of the unpopularity of climate change legislation in key parts of the country, like Ohio and southwestern Virginia.

Even environmental groups like the League have largely focused on other issues in campaign ads, like candidates' votes against clean water legislation, a sign they recognized it wasn'ttheir most effective issue politically. But the storm has reignited a discussion of the issue.

The group did not disclose how much it is spending to run the ad on cable systems nationwide. 

Watch the ad: