An environmental group on Wednesday asked U.S. Secretary of State Hillary Clinton to deny permits for pipelines that would bring oil from Canada's oil sands to the United States.

A global shift toward nuclear power is prompting countries to rush to lock in long-term access to tight supplies of uranium, and China and India look to be the next players to get in on the action.

Chu launched the "Low Carbon Communities of the Americas" program at an event on energy and climate change that was put together after presidents at the Fifth Summit of the Americas in April agreed to collaborate more on green energy issues.

U.S. lawmakers on Thursday sought to increase incentives for nuclear power and energy efficiency in a measure that would require utilities to generate a certain amount of electricity from renewable sources.

Using a mobile phone-based software program has enabled a test group of Volvo employees to cut the greenhouse gas emissions of their daily commute by more than 30 percent.

In the tense debate between energy security and environmental sustainability, Canada

Power generation from renewable sources such as wind turbines, solar cells and biomass plays a small but important part in satisfying total electricity demand around the world, and is growing at an exponential rate thanks to generous public subsidies and government support.