Methane leakage have been first estimated by the gas industry actors first. With no incentive to work on those leakage (no regulation) and a strong incentive to

Methane leakage have been first estimated by the gas industry actors first. With no incentive to work on those leakage (no regulation) and a strong incentive to be "green" (it grant you money and good PR which is money), numbers can't be trusted. That's why there are demands for regulations only after scientist looked over the shoulder of industrials. At the end, scientists often only look at things, the don't decide about regulations and economy. Backing out would require a lot of courage, but not doing it put a serious threat to the efforts of keeping the climate change at a not-too-catastrophic level. Talking about terraform, in 2011 in germany they did test renewable powered methane production via electrolysis and Sabatier process. I can't find any news about it, but it's exactly what terraform is doing. Terraform claim to produce H2 at less than 2.5$/kg, but I find different numbers when looking at scientific publications (it's between 4.8-7.5$/kg).[0] They also claim to produce from "air", but C02 capture is really poor and it's better to capture it from industrial plants. But anyway, it's not a big problem. An other problem is the water cost of electrolysis. [0] https://link.springer.com/article/10.1007/s10311-021-01322-8 https://link.springer.com/article/10.1007/s10311-021-01322-8