The scientists who do climate research understand that much of the ever increasing concentration of CO2 in the atmosphere since 1850 must be attributed to burning those fossil fuels to produce the energy that drives industrialization.

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.

The incompetence regarding body and vehicle armor rises almost to a level of criminal negligence.

America has also forever lost the service of thousands of good soldiers who are now disabled as a result of battle wounds in Iraq. Many others will need mental and emotional rehabilitation before they can return to normal life.

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

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.

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