an overview of landfill gas energy in the united states us environmental protection agencyu s agency methane outreach program lmop file last updated april 2006 why epa cares about z is a potent heat trapping landfills are largest human made source there many cost effective options for reducing emissions while generating projects reduce local air pollution and create jobs revenues savings established 1994 voluntary that creates alliances among users providers industry communities mission to by lowering barriers promoting development environmentally beneficial lfge modern municipal solid waste 101 lfg product decomposition msw 50 ch 4 carbon dioxide co 2 1 non organic