It's really not about ideal vs. non-ideal, it's about how to get the largest reduction in the fastest way, for the same public effort, political cost etc. CO2

It's really not about ideal vs. non-ideal, it's about how to get the largest reduction in the fastest way, for the same public effort, political cost etc. CO2 in automobile fuel is already heavily taxed in EU. Fuel used for aviation - guzzled by definition by the rich - is not taxed at all: https://www.greenaironline.com/news.php?viewStory=2453 https://www.greenaironline.com/news.php?viewStory=2453 The massive industrial CO2 outputs of cement or steel factories is taxed at negligible levels compared to fuel, EU could easily reduce emissions by increasing the tax while applying a similar levy on imported products. The revenue these taxes could generates could be reinvested in electric transport infrastructure to benefit all, or industrial and technological upgrades for housing, manufacturing etc. These crap policies like speed limits have a single purpose, to avoid tackling the real issues of carbon emissions in the context of international trade, with the largest emitters getting a massive subsidy by destroying the planet.