An internal government memorandum that came to light on Tuesday challenged the scientific and economic basis of a proposed Environmental Protection Agency finding that climate-altering gases are a threat to human health and welfare.

The earthquake that killed 87,000 people in Sichuan Province in China a year ago this week was a devastating tragedy that, through all the rubble, offered a few rays of hope.

Pregnant women who get swine flu are at such high risk of complications like pneumonia, dehydration and premature labor that they should be treated at once with the antiviral drug Tamiflu

The first case of swine flu in China was confirmed Monday as the epidemic continued moving around the world, with the World Health Organization reporting about 4,700 laboratory-confirmed cases in 30 countries.

Communication with a Chinese man, being treated for the new H1N1 strain of flu, was broadcast at a hospital in Chengdu, Sichuan province Monday.

President Obama engineered a political coup on Monday by bringing leaders of the health care industry to the White House to build momentum for his ambitious health care agenda.

Residents of this upscale community are suburban pioneers, going where few soccer moms or commuting executives have ever gone before: they have given up their cars.

President Obama

The green movement has something of an image problem in that the sheen of luxury clings to so much of it, with Whole Foods, hybrid cars and organic silk sweaters pricing themselves out of the lives of most consumers.

The National Guard is helping residents in West Virginia

Doctors, hospitals, drug makers and insurance companies will join President Obama on Monday in announcing their commitment to a sharp reduction in the growth of national health spending, White House officials said Sunday.