Gore predicts Obama will attend climate summit

Former Vice President Al Gore on Saturday stressed he was "certain" the president would attend a climate change conference in Copenhagen later this year.

So far, President Barack Obama has signaled he would only attend the U.N.'s summit if other heads of state did too, but Gore this weekend predicted the president would change his mind as Congress progressed further on climate change legislation.

"I see the calendar, I see the unfolding of events, and I feel certain he will go," Gore told a German newspaper during an interview, adding that Congress is likely to move on cap-and-trade before the December summit.

"Therefore, I think there is a very real prospect that the legislation will pass, and that as a result, Obama will have the ability to go to Copenhagen with a more substantive position," the former vice president added.

However, even if Obama does not attend, the United States will be represented in Copenhagen: A number of lawmakers have signaled this month their intentios to participate in the December summit.