Melissa Klein is the communications director for Green Power Partnership and the Center for Corporate Climate Leadership within the Climate Protection Partnerships Division at the U.S. Environmental Protection Agency. Green Power Partnership is a voluntary program that encourages organizations to use green power as a way to reduce the environmental impacts associated with electricity use. The Partnership currently has more than 1,300 Partner organizations voluntarily using billions of kilowatt-hours of green power annually. Partners include a wide variety of leading organizations such as Fortune 500® companies, small and medium sized businesses, local, state, and federal governments, and colleges and universities. For additional information, visit epa.gov/greenpower. The Center for Corporate Climate Leadership provides technical tools, educational resources and opportunities for information sharing, to support organizations in measuring and managing greenhouse gas emissions, from the beginning through the supply chain.The Center’s web-based tools provide methodological guidance on developing a company-wide GHG inventory, as well as tools that help calculate a company’s carbon footprint, identify GHG reduction sources and track progress.