Clearly, a stable, unified and democratic Iraq cannot be achieved militarily by the U.S.

Americans were told repeatedly by President Bush and Vice President Cheney that Iraq had weapons of mass destruction. None were ever found.

The industrialization of China alone would increase by 90 percent the concentration of CO2 in our atmosphere and would at least increase the atmospheric CO2 by at least another 100 parts per million.

The conduct of President Bush's war of choice has been plagued with incompetent civilian leadership decisions that have cost many lives and rendered the war on and occupation of Iraq a strategic policy disaster for the United States.

As a scientist, my attention became totally focused on global warming some 15 years ago by the elegant and powerful measurements of carbon dioxide trapped in ice cores taken as much as 2 miles deep from the great East Antarctica ice sheet.

The most extreme individuals and factions in Islamic countries are now more motivated than ever to kill Americans, and the number of potential terrorists has greatly expanded.

We need to make it clear that we will withdraw from Iraq within 6 to 9 months - so that the Iraqis will know that they must stand up and defend the opportunity given to them.