Energy Efficiency in Affordable Housing The Local Government Climate and Energy Strategy Series provides a comprehensive, straightforward overview of greenhouse gas (GHG) emissions reduction strategies for local governments

www.energystar.gov/campaign

ENERGY STAR products are independently certified to save energy without sacrificing functionality. Saving energy helps prevent climate change. Look for the ENERGY STAR label to save money on your energy bills, help save our environment.

The most efficient forms of renewable energy geothermal, solar, wind, hydroelectricity and biomass. Biomass has the biggest contribution with 50%, hydroelectricity at 26% and wind power at 18%. Geothermal energy is generated by harnessing the Earth's natural heat.

Sustainable energy – Wikipedia Sustainable energy is the practice of using energy in a way that "meets the needs of the present without compromising the ability of future generations to meet their own needs."[1][2]

Source:en.wikipedia.org