I have heard that landfills can be a source of energy. How does that work?
Just like manure, other types of organic waste emit methane as they decompose—or rot—in the landfill. Landfills can collect and treat the methane, and then sell it as a commercial fuel, or they can burn it to generate steam and electricity. Today, there are more than 620 gas energy landfill projects operating in the United States.