You didn't read the prior posts, or you'd know the point I was making is that environmental impact is dependent on a great many number of variables. To that end, any anecdote is worthless because it cannot be applied more broadly to estimate environmental impact. My response wasn't an "us vs them" argument, but instead to say that the right tool for the job depends on a lot of factors.You do know that you don’t live in a bubble when it comes about the CO2 emissions, right ? There is no boarder that can stop it to expand everywhere... it is not county/state/country related. "Your" tail pipe has an impact on "me" even though "you" are at thousands of miles maybe. The vice-versa is true too. So let’s stop about "us" and "them", because when it’s about climate and the quality of the air, only idiots can think that it’s all about boundaries.