Landfill gas utilization is a process of gathering, processing, and treating the methane gas emitted from decomposing garbage to create electricity, heat, powers, and chemical compounds. The number of landfill gas assignments, which convert the gas into strength, went from 399 with 2005 to 519 in 2009 in Great Britain, according to the planet Agency. These projects are popular because control energy expenses and reduce techniques gas emissions.