Cities are responsible for almost 1/5th of the global methane emissions caused by human activities. But most cities don’t capture information about the full range of sources of this powerful greenhouse gas. In 2020, a team led by McGill University, measured methane emissions from various sources across the city of Montreal.
Click here for original story, Methane from manholes and historic landfills: Significant sources of gas go unrecognized
Source: Phys.org