No one thinks that cow farts are causing global warming. That's a straw man argument, created by industrial feedlots and shared to gullible people like yourself so you will do the corporations pr work for them for free. It's sewage evaporation ponds (all the cow shit pig shit whatever gets flushed into ponds to evaporate as the feedlots get regularly flushed out with water. A pond full of sewage creates methane pollution. A cow on pasture has a net negative carbon footprint because they shit onto the soil and it composts instead of rotting. They actually help build the soil and trap carbon in the soil.