Meanwhile, members of the world’s leading climate change panel testified before the House Science and Technology Committee Thursday on the dangers of global warming. The hearing comes days after the U.N. Intergovernmental Panel on Climate Change published its report saying global warming is very likely caused by human activity and may be impossible to stop.

Intergovernmental Panel on Climate Change co-chair, Dr. Susan Solomon: “We are already committed to further warming even if we were to stabilize all greenhouse gases now, instead of having continuing increases, and in that regard, the rate of increase of carbon monoxide for the past 10 years was the largest since direct measurements began in 1960.”

In other testimony, House Speaker Nancy Pelosi said Democrats plan to have legislation on global warming and energy independence in place by the 4th of July. U.N. panel author and National Center for Atmospheric Research expert Dr. Kevin Trenberth also spoke.

Dr. Kevin Trenberth: “As with a fiscal budget, we are running a deficit and building a deficit for future generations, and our current generation is now running what we might refer to as an environmental deficit, and it will indeed be paid for by future generations.”