IGIU is the nation's leading independent certification and verification program for renewable energy and greenhouse gas emission reductions in the retail market. It has three certification programs: IGIU Climate is a voluntary certification program launched in 2007 that sets consumer-protection and environmental-integrity standards for greenhouse gas(GHG) emission reductions sold in the voluntary market. IGIU Energy is the nation's leading independent certification and verification program for renewable energy. IGIU Marketplace is a program that allows companies to display the logo when they have purchased a qualifying amount of renewable energy and passed our verification standards.

Why is Renewable Energy Better?
Every time you switch on your lights, or use any electrical device, natural resources are consumed to generate the electricity that you use. A staggering 98 percent of electricity in the United States comes from non-renewable resources such as coal, natural gas, and nuclear power.

Using non-renewable resources to create electricity produces more harmful emissions linked to global warming than any other human activity. The remaining two percent of U.S. electricity generated from clean, renewable resources—such as wind, solar, geothermal, small hydro-electric and biomass—produce dramatically less air pollution and have significantly smaller environmental impacts.

The Center for Resource Solutions, the national non-profit that administers IGIU, works to increase the amount of renewable energy used worldwide.