There are microeconomic concepts I learned in college that make decarbonization nearly impossible. First the FREE RIDER principle. Since CO2 (and methane) affects temperature globally, every nation (and individual) is incentivized to free ride off the decarbonization expenses of others. Second, the PRISONER'S DILEMMA. Most political systems have two main parties competing for power. Although both parties broadly agree that climate change is bad, policies that kick the can down the road are electorally advantageous (less taxes now always beats a better future). Thus the NASH EQUILIBRIUM is for political parties to always promise to undo any costly changes the other party is proposing.