easy? How do you enforce it worldwide? If you impose it volutarily then how you don't lose competitive adventage? It's only possible now because clean energy i

easy? How do you enforce it worldwide? If you impose it volutarily then how you don't lose competitive adventage? It's only possible now because clean energy ia cheaper (but still cannot compete in emergency situations), so we should invest in fission and fusion research EDIT: I'm in favor of carbon tax BTW, we can afford it now and will incentivise investment in green tech more