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Al Gore came to Washington in July to issue a challenge to the country: create a new energy economy that will generate 100 percent of America's electricity from clean sources within 10 years. Now the former vice president’s advocacy group, the Alliance for Climate Protection, has launched a new TV ad to spread the message to Olympics viewers.

The group debuted "Switch" (subscription) on NBC during Monday's coverage of the Games; the spot will continue to air on NBC and USA Network through next week.

As in the group's first TV ad, actor William H. Macy narrates and soothing music creates an upbeat tone to promote the group's message: "Together we can solve the climate crisis." Americans from different walks of life are shown coming together to help each other turn on giant light switches -- one in the desert, one in a field, one at a factory and one in the middle of a city.

Macy lays out some of the vast challenges facing the country: "a weaker economy, soaring gas prices, growing dependence on foreign oil and a worsening climate crisis." But, he says, "there’s a bold new solution for all of these challenges." He presents Gore's plan to create clean electricity as a way to combat both economic and national security threats. "All we need is your help," he says, encouraging viewers to "join the more than one million people who are already demanding we switch on a brighter future."

“The Olympics are a time for all Americans to reflect on our nation’s achievements and what we as a people can do together," Alliance for Climate Protection CEO Cathy Zoi said in a press release announcing the ad. "Choosing the right path and re-powering our nation is something we can do, and something that will benefit us all.”

For all the money the group is pouring into its public outreach effort, however, recent polling data suggests that Americans' attention is not squarely focused on climate change issues. With the election and economic problems occupying the media spotlight, the number of Americans who say they consider global warming an important issue to them personally has fallen 5 percentage points since 2007 to 47 percent.