Proper "Georgist" accounting of externalities is a really important step in tackling climate change and pollution (as well as a host of other issues). Companies

Proper "Georgist" accounting of externalities is a really important step in tackling climate change and pollution (as well as a host of other issues). Companies should absolutely not be free to pollute like there's no tomorrow at absolutely zero cost. Impose a cost, calculated in some manner based on the harm caused by those emissions, together with a hard cap. Or better yet, ramp up those costs so there's diminishing returns (a curve so that you can emit a small and sustainable amount for cheap, the costs become more onerous as you emit more, eventually going up to ∞, the hard cap).