The sled dog race has, in the past few years, adjusted for warmer weather and sprawl. These changes—like starting farther north—are now here to stay.

It's unclear how many bags the world's most populous nation has been using, but conservationists say the United States alone tosses nearly a hundred billion plastic bags a year.

Severe winter weather in Afghanistan, India, Iran, and several Central Asian countries has killed nearly a hundred people and isolated communities from major cities.

Critics worry the new, super-low-cost car from India's Tata Motors—costing about $2,500—will cause more traffic and pollution by making car ownership affordable to millions more.

Recent Tiger attacks stir debate: Have we underestimated tigers? "What animals normally do and what they can do are often very different things," a conservationist says.

A pair of drugged tigers was found in the back seat of a car in Vietnam, and four dead were found in a freezer, a local paper reports.

The recently rumbling Tungurahua volcano is spewing more ash and smoke.

The proteins—also found in mammals—enable the insects to use the sun as a compass, scientists say, after a molecular study of the butterflies' "circadian clocks."

Medical and environmental experts are attributing recent malaria epidemics in the East African highlands to warmer temperatures and changing in rainfall patterns.

Looking for El Niño history in the disappearing tropical ice of New Guinea, one scientist hopes to learn the past to prepare for the future—before it's too late.

Much more energy efficient and environmentally friendly than corn ethanol, switchgrass ethanol may be a viable gasoline alternative, a new study says.

A farming village has sprung up in Egypt's remote desert, feeding on buried "fossil water." But residents are struggling to make ends meet as government promises run dry.

The fast-growing country is embarking on an ambitious plan to turn its barren deserts into productive farms and fields.

The freak tornado cluster has demolished houses, knocked railroad cars, and closed an in-session courthouse.

To ease the burden of its exploding population, Egypt is reclaiming millions of acres of the Sahara and converting them into farms and fields