Inadequate sewage systems and the lack of toilets in much of the developing world have created a major public health and environmental crisis. Now various innovators are promoting new kinds of toilets and technologies that use little or no water and recycle the waste.

Experts believe the next deadly human pandemic will almost certainly be a virus that spills over from wildlife to humans. The reasons why have a lot to do with the frenetic pace with which we are destroying wild places and disrupting ecosystems.

The government and the House of Representatives heralded a new era of greater access to university education with the passage on Friday of the bill on higher education, but students across the country greeted the new legislation with protests.

Fireworks are meant to be enjoyed, but you'll appreciate them much more this Independence Day and all summer knowing your family is safe.

When Silent Spring was published in 1962, author Rachel Carson was subjected to vicious personal assaults that had nothing do with the science or the merits of pesticide use. Those attacks find a troubling parallel today in the campaigns against climate scientists who point to evidence of a rapidly warming world.

Critics of wind power point to infrasound as an agent produced by wind turbines that causes health impacts of varying degrees of severity to people nearby.

U.S. consumers tell researchers they want to buy environmentally friendly products, but so far they haven’t been doing that on a large scale. Now a host of companies and nonprofits are trying to use new technology — from smartphones to social networking — to make it easier for buyers to make the green choice.

Scientists have long believed that vitamin D, which is naturally absorbed from sunlight, has an important role in the functioning of the body's autoimmune system.