Why must methane gas be removed from landfills?

Methane gas must be removed from landfills because it is a potent greenhouse gas, with a warming potential many times greater than carbon dioxide over a short time frame. If not managed properly, methane can escape into the atmosphere, contributing significantly to climate change. Additionally, methane is flammable and poses safety risks, including the potential for explosions. Capturing and utilizing methane can also provide a renewable energy source, reducing reliance on fossil fuels.