Landfill gas (LFG) is a natural byproduct of the decomposition of organic material in landfills. LFG is composed of roughly 50 percent methane (the primary component of natural gas), 50 percent carbon dioxide (CO2) and a small amount of non-methane organic compounds.
How much methane does a landfill produce?
Per the most recent Inventory Report, U.S. landfills released an estimated 114.5 million metric tons of carbon dioxide equivalent (MMTCO2e) of methane into the atmosphere in 2019; this represents 17.4 percent of the total U.S. anthropogenic methane emissions across all sectors.
What is landfill methane capture?
Landfill methane can be tapped, captured, and used as a fairly clean energy source for generating electricity or heat, rather than leaking into the air or being dispersed as waste. The climate benefit is twofold: prevent landfill emissions and displace coal, oil, or natural gas that might otherwise be used.
Do landfills cause global warming?
The Landfills contribute to global warming because once waste has been dumped very little air remains below the surface. The landfill gas is generated as a byproduct of the digestion of organic materials by organisms.
What is the biggest cause of methane gas?
The largest source of anthropogenic methane emissions is agriculture, responsible for around a quarter of the total, closely followed by the energy sector, which includes emissions from coal, oil, natural gas and biofuels.
What is the largest producer of methane?
The largest emitter, Hilcorp Energy, reported almost 50 percent more methane emissions from its operations than the nation’s largest fossil fuel producer, Exxon Mobil, despite pumping far less oil and gas.