What is methane capture?

When organic waste (like food scraps, paper, or yard waste) decomposes in a landfill, it produces landfill gas (LFG), which is roughly 50% methane (CH₄) - a potent greenhouse gas - and 50% carbon dioxide (CO₂) along with small amounts of other compounds. Without intervention, this gas escapes into the atmosphere, contributing to air pollution and climate impact. Methane capture projects collect the gasses emitted from decomposing waste in landfills using a network of wells and pipes. 

The captured gas is then either flared (burned off in a controlled flare to convert methane into less harmful CO₂) or used as fuel to generate electricity, replacing fossil fuel-based power. The process starts with drilling wells into the landfill, installing a vacuum system to extract the gas, and treating it to remove impurities. If used for energy, the methane powers engines or turbines, producing renewable electricity while preventing emissions. Continuous monitoring ensures the system operates efficiently, and the verified emissions reductions can be sold as carbon credits. This approach not only cuts pollution and odor but also creates clean energy, improves local air quality, and reduces safety risks from methane buildup.