As the Markey-Waxman bill on carbon emissions cap-and-trade makes it way through the Senate, a new carbon-counting reality may soon be here for American businesses.

As flu season goes into high gear in the southern hemisphere, the U.S. Dept. of Homeland Security is preparing for a potential flu outbreak in the United States, according to its top official.

Government experts called for sweeping safety restrictions Tuesday on the most widely used painkiller, including reducing the maximum dose of Tylenol and eliminating prescription drugs such as Vicodin and Percocet.

The Food and Drug Administration is focusing on a seldom-discussed side effect of the medications with acetaminophen: severe liver damage.

The World Health Organisation warned on Friday against a false sense of security from waning and apparently mild outbreaks of H1N1 flu, saying the worst may not be over.