It's worth noting that if they didn't burn the escaping methane, it would be a far worse greenhouse gas than the CO2 the burnt methane turns into. In other wor

It's worth noting that if they didn't burn the escaping methane, it would be a far worse greenhouse gas than the CO2 the burnt methane turns into. In other words if you can't capture 100% of the gas (which presumably is almost never going to be possible) it's actually critical that you burn the rest.