Hacker News new | past | comments | ask | show | jobs | submit login

Landfills burn it when they aren't equipped to power a generator with it. This also reduces the greenhouse gas impact, as the combustion byproduct is mostly plain CO2 and water. CO2 is also a greenhouse gas, but not as bad as methane.

Either way, it has to be collected and burned off.

Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact