for methane id look into farming cattle indoors and have atmoshere feed into a furnace. that way the methane would be consumed, however minute it was. the furnace can use the traditional catyltic/bypass system wood stoves use where a palladium panel assists in a final combustion to co2. then this can be fed into a greenhouse for agriculture. the furnace can generate electricity. elon musk i want my money. im right and noone else is gonna solve this but my answer. thanks. and by placing agriculture next to power production/coal usage and livestock too the standard for cleanliness in energy production becomes high. im sure additional passive sparging equipment would prudent to filter out particulates and heavy stuff from the air, but if the exhaust of a power plant can be exhaled onto our food then no one should be bitching about ''the enviroment''