A reminder: CO2 is what you get when you burn hydrocarbons like coal or oil.
(Or breathe, which makes every human being on the planet a greenhouse gas emitter, but let’s not even go there.)
Anyway, in part because they don’t have much of an oil industry to destroy, for the last 50 years or so, Europeans have been comfortable pushing energy efficiency with high gasoline taxes and high-speed trains and wind farms. Those are all basically harmless ways to prove they aren’t Americans. (The trains are actually nice.) (3/8)
