Delegations from around the world failed on Friday to agree a landmark U.N. arms-trade treaty to regulate the more than $60 billion industry, opting for further talks and a possible

Several high-profile venues, including the Aquatics Centre in the Olympic Park (pictured) and the gymnastics arena in North Greenwich, had rows of empty seats on the first day of the Games.

Three members of the feminist collective were arrested after an anti-Putin protest and face up to seven years in jail.

A Portland State University graduate student expelled after allegedly threatening violence against a faculty member wants to return to the university.

The amount of "green" advertising rises and falls in conjunction with key indicators of economic growth.

Better-designed and greener ways have taken root among researchers and industry, and it's not just about removing hazardous chemicals from the hood.

The right to own guns is ingrained in the American psyche, but in a town in Georgia it's also the law.

In China’s sprawling Xinjiang region, where the population is growing and cotton farming is booming, a key river has been running dry in summer.

How can companies navigate the inevitable confusion that arises when sourcing and certification programs each define and measure sustainability by a different set of standards?

UC Davis Chancellor Linda P.B. Katehi has ordered a top campus official to conduct a %22comprehensive review%22 of accusations that two university neurosurgeons conducted unauthorized research on dying brain cancer patients.