An in-depth analysis of ten climate indicators all point to a marked warming over the past three decades, with the most recent decade being the hottest on record, according to the latest of the U.S. National Atmospheric and Oceanic Administration's annual "State of the Climate" reports, which was released Wednesday. Reliable global climate record-keeping began in the 1880s.

Lounging in the shade may sound soothing, but it could be the death of many lizards if global warming continues at current rates. As temperatures inch upward, the reptiles rest more and hunt less. As a result, 20 percent of lizard species could go extinct by 2080, a new study says.

Your shampoo may seem harmless, but it could be contributing to the formation of a mysterious, cancer-causing substance, a new study says. New research reveals that common household products such as shampoo can interact with disinfectants at U.S. wastewater treatment plants to form a little-studied class of cancer-causing substances.

Two billion tons of human and animal waste and industrial pollution are dumped into waterways every day around the world, according to reports released in Nairobi, Kenya, for the 17th annual World Water Day

As a young man, David Western spent four years herding cattle and goats with red-robed Masai tribesmen in the Kenyan bush. There, he found something remarkable. While cattle grazing is believed to lead to deforestation and the destruction of wildlife, Western learned what the Masai already knew: his cattle fertilized the land and actually improved its diversity.