Yeah it’s up to 300 liters per day due to the burps and about 90 liters per year due to the dung, it is not nothing and it is good that it is converted, but the main methane issues persist!
Discussion
Sorry it’s about 220 liters per year, not 90 but still pretty low! By the way, using less antibiotics in the farming processes would also decrease methane in cow burps a bit!