WASHINGTON (CNN) - With roughly three months until the first wave of voters weigh in on the 2008 presidential candidates, Al Gore supporters are stepping up their efforts to persuade the former vice president to jump into the race.
Draftgore.com published an ad in the New York Times Wednesday with an open letter to the 2000 Democratic presidential nominee strongly urging he throws his hat into the ring.
"You say you have fallen out of love with politics, and you have every reason to feel that way," the letter states. "But we know you have not fallen out of love with your country. And your country needs you now - as do your party and the planet you are fighting so hard to save."
"Many good and caring candidates are contending for the Democratic nomination," the ad continues. "But none of them has the combination of experience, vision, standing in the world and political courage that you would bring to the job. Nor do they have the support among voters that you enjoy and would lead you to victory in 2008".
The group also claims in the letter it has amassed 136,000 signatures for its petition urging Gore to run.
The ad comes two days before Gore finds out if he has won the Nobel Peace Prize for his efforts to bring attention to the dangers of global warming. The winner is set to be announced on Friday in Norway.
The ad also comes a day after Gore backers in California began a campaign to get the former vice president on the state's Democratic primary ballot. The group needs to amass signatures from 26,500 registered Democrats in the state - 500 from each congressional district - by December 4 to successfully place Gore on the ballot.
Meanwhile, Gore himself continues to say he has no plans to run for president again.
Responding to the ad, Gore's spokeswoman Kalee Kreider said the former vice president "truly appreciates the heartfelt sentiment behind the ad, however, he has no intention of running for president.
"He is involved in a campaign of a different kind—a campaign to educate all Americans about the climate crisis and what we can do to solve it," she added.
- CNN's Alexander Mooney and Steve Brusk