Careful with the whataboutism. Methane's largely been solved by food additives that discourage methanogenic bacteria. We're talking about urine and ammonia right now.
Methane is more potent as a greenhouse gas, but it's shorter-lived, way less of a contributor to global warming than CO2, and doesn't appear to have anywhere near as much impact on the health or growth of animals or plants as heightened CO2 levels do.
Solved, but not implemented on a wide scale. I don’t know if it’s the added cost, availability or what else, but solved problems aren’t really solved if the solution is never implemented.
Methane is more potent as a greenhouse gas, but it's shorter-lived, way less of a contributor to global warming than CO2, and doesn't appear to have anywhere near as much impact on the health or growth of animals or plants as heightened CO2 levels do.