An aide to the Obama transition told ABCNews.com that some of the 3 million jobs would come from those 5 million green jobs.
"The 5 million green jobs [are] over a longer time horizon," the transition aide said. "So there's overlap -- some of the 3 million would be green jobs that count towards the 5 million green jobs. But they are certainly not additive."
The green jobs promised during the campaign would harness "America's highly skilled manufacturing work force," according to the campaign's Web site, to create new bio-fuels and hybrid cars, jobs that would potentially require years of training and retooling before they could become a reality.
Obama is still talking today about environmentally friendly jobs, but in industries that would require far less investment or training. Instead of jumping to overhaul the national power grid, the president-elect wants to first employ people to weatherize homes and public buildings to make them more energy efficient.
The bulk of the new jobs in the short run will not be in green industries or new technology but in old-fashioned construction and repair projects -- building roads, bridges and schools -- reminiscent of the New Deal's Works Projects Administration.
Obama has said he wants to target projects deemed "shovel ready" and has insisted on a "use it or lose it" policy, warning states that they will lose the money if they don't begin building promptly after receiving it, according to a transition aide.
Obama has called the plan "the largest new investment in national infrastructure since the creation of the federal highway system in the 1950s," but Republican lawmakers contend these projects could cost up to $1 trillion and were created by Obama and his team behind closed doors without their consultation.
"We need to find the right mix of tax relief and other measures to grow the economy," Senate Republican leader Mitch McConnell of Kentucky said in a statement last week.
"This will require the consideration of alternative ideas, public congressional hearings and transparency, not a rushed, partisan take-it-or-leave-it approach," he said.
Today, Obama will reportedly meet House Speaker Nancy Pelosi of California and Senate Majority Leader Harry Reid of Nevada, both Democrats, and then McConnell and Republican Rep. John Boehner of Ohio.