At the COPS27 meeting, President Biden announced new EPA rules regulating methane emissions. From the Associated Press:
At the climate conference, Biden discussed a new supplemental rule that will crack down on methane emissions, expanding on a similar regulation his administration released last year. Methane is a potent greenhouse gas that contributes significantly to global warming.
IMO there’s considerably more bang for the buck in reducing methane and nitrous oxide emissions than from reducing carbon dioxide in the atmosphere. If you believe in human-created climate change due to greenhouse gas emissions at all, those should be the focus.
As this EPA page makes clear although methane constitutes about 11% of U. S. greenhouse gas emissions, it’s a much more important contributor to climate change than carbon dioxide.
Most methane emissions are from losses during the production of oil, natural gas (and coal), especially pipeline leaks, and agriculture and that in turn is mostly from “enteric fermentation”, the digestive process of ruminants, particularly cows. There are ways of reducing both of those.
In the case of “enteric fermentation”, methane emissions can be reduced by what you feed cows and how you deal with manure. You don’t need to eliminate the raising of cattle entirely; even fairly minor reductions in methane emissions should be adequate.
I believe that one regular commenter here is something of an expert on this subject and I hope he chimes in.
I’m less enthusiastic about what’s referred to as “loss and damage” (payoffs to poorer countries) for two reasons. First, because it’s a license to steal and second, because it only considers one side of the ledger. I don’t believe that the United States is a net liability to the world. Indeed, quite the opposite but the notion of “loss and damage” payments certainly suggests that’s the case.
At any rate I look forward to the actual policy that emerges from this. I hope there are carrots as well as sticks.