flat feet

bad breath

A bunch of guys just adjusted the time on something they named the "Doomsday Clock", in part because of "new initiatives to expand nuclear power plants around the world and the lack of progress toward realizing the goals of the Nuclear Non-Proliferation Treaty or ratifying the Comprehensive Test Ban Treaty."

In previewing the State of the Union address the president will deliver tomorrow, administration officials have strongly hinted that Bush would outline steps the government will take to reduce emissions of greenhouse gases such as carbon dioxide, which most scientists believe contribute to global warming.

Scientists know for certain that human activities are changing the composition of Earth's atmosphere. Increasing levels of greenhouse gases, like carbon dioxide (CO2 ), in the atmosphere since pre-industrial times have been well documented. There is no doubt this atmospheric buildup of carbon dioxide and other greenhouse gases is largely the result of human activities.

It's well accepted by scientists that greenhouse gases trap heat in the Earth's atmosphere and tend to warm the planet. By increasing the levels of greenhouse gases in the atmosphere, human activities are strengthening Earth's natural greenhouse effect. The key greenhouse gases emitted by human activities remain in the atmosphere for periods ranging from decades to centuries.

A warming trend of about 1°F has been recorded since the late 19th century. Warming has occurred in both the northern and southern hemispheres, and over the oceans. Confirmation of 20th-century global warming is further substantiated by melting glaciers, decreased snow cover in the northern hemisphere and even warming below ground.