Methane, a powerful greenhouse gas, is emitted from a variety of sources. Human-caused methane emissions from municipal solid waste (MSW) landfills are the third-largest source in the United States. The webinar will provide the basic information about methane generation from MSW landfills as well as the recent advances in methane emissions measurements and quantification, including an example that is using remote sensing technology to detect, pinpoint, and quantify methane at the scale of individual facilities, and a discussion on landfill emissions measurement and analysis from WM.