U.S. GAO - Aviation and the Environment: Survey of Airport Officials on Airport Environmental Issues (GAO-10-748SP, September 2010), an E-supplement to GAO-10-50

76.	What factors or circumstances, if any, have helped your airport to become more "green" or environmentally sustainable?

77.	What factors or circumstances, if any, have hindered your airport from becoming more "green" or environmentally sustainable?

78.	How could the Federal Aviation Administration (FAA), U.S. Environmental Protection Agency (EPA), or Congress assist your airport in becoming more "green" or environmentally sustainable?