a notable number of Garbage trucks are LPG or some variant Be interesting if they're able to clean/compress/use methane produced by the dump itself instead of

a notable number of Garbage trucks are LPG or some variant Be interesting if they're able to clean/compress/use methane produced by the dump itself instead of having it flared off - or drive a generator tied into battery charging. It really needs to be burned instead of just being released as-is, might as well get use from it.