On the recordApril 22, 2008
Earth Day has been celebrated on April 22 every year since 1970. Much has changed since then. Americans have grown increasingly aware of importance of environmental stewardship for the wellbeing of our country. New challenges have emerged, though, that we didn't recognize in 1970. New sources of pollution threaten our air and water. In recent weeks, for instance, we have been reminded that there are chemicals and pharmaceuticals entering our waters whose effects on the environment are largely unknown. Perhaps our most important challenge perhaps the greatest problem mankind has ever faced--is global warming. Disruptive climate change threatens our ecosystems, our national security, and our economy. Landmark laws such as the Clean Water Act and the Clean Air Act have done much to protect America. Now, though, our generation is being asked to step up to save our planet as a whole. The science is unequivocal: global warming is real and manmade greenhouse gases are the root cause. The scientific debate is over, and the time for action is at hand. Congress is taking this responsibility seriously. Several bills have been introduced in the 110th Congress that would attempt to reduce greenhouse gas emissions. Among them is America's Climate Security Act, the bill crafted by Senators Lieberman and Warner. The Lieberman-Warner bill has the potential to reduce America's total greenhouse gas emissions by 25 percent by 2020 and 66 percent by 2050 compared to 2005 levels.
Source
govinfo.gov




