ABC News' Nitya Venkataraman Reports: In a speech on global warming Thursday, former Vice President Al Gore will challenge the nation to make a complete shift to Earth-friendly energy sources within the next ten years.
In an interview with the Associated Press previewing the speech, Gore says his power goal is "an investment that will pay itself back over time".
Gore's bipartisan group, the Alliance for Climate Protection, estimates the cost of transferring the country to clean electricity sources could cost between $1.5 - $3 trillion over the next thirty years. Gore said in the interview it would cost as much to build the more environmentally hazardous coal plants to address the needs of the current demand.
Gore, who won the Nobel Prize in 2007 for his international work as a crusader for climate change, said "I have never seen an opportunity for the country like the one that's emerging now." Gore also offered praise to both the Democratic and Republican presidential candidates, calling both Barack Obama and John McCain "way ahead" of other politicians on the issue.
The Alliance for Climate Change, the bipartisan group Gore chairs, says on its website that in his speech Gore aims to "press the "reset" button on how we think about energy and climate."