U.S. Department of Energy's laboratory for renewable energy and energy efficiency research, development and deployment

Canada's centre of excellence for energy efficiency and alternative fuels information, helping Canadians save millions of dollars in energy costs while addressing the challenges of climate change

U.S. government program which encourages energy efficiency by promoting energy efficient products

a rating mechanism that assesses the environmental impact of different types of electric generation, making it easier for you to plug into cleaner power for the planet's future; by the Pace Law School Energy Project

seeks to accelerate and expand the global market for renewable energy and energy efficiency technologies through an active, global public-private partnership that structures policy and regulatory initiatives for clean energy, and facilitates financing for energy projects

report assesses current trends in energy use and energy costs of data centers and servers in the U.S. and outlines existing and emerging opportunities for improved energy efficiency (pdf)

provides a blueprint for harnessing clean, affordable energy efficiency and renewable energy in the Midwest of the U.S.; shifting from a reliance on coal and nuclear power to cleaner fuels

a major research organization on energy efficiency, fostering the efficient and restorative use of resources to create a more secure, prosperous, and life-sustaining world

seeks a transition to sustainability that will change the types of businesses that exist and the products they produce; provides information on eco-efficient practices for business

supports energy efficiency and renewable energy technologies for a cleaner environment

promotes development of high efficiency cogeneration (CHP) and decentralized renewable energy systems that deliver substantial economic and environmental benefits

campaign by Internet company Yahoo to promote energy conservation and efficiency to address climate change

provides a list of 10 things you can do personally to decrease climate change