Decarbonizing Development looks at what it would take to decarbonize the world economy by 2100 in a way that is compatible with countries’ broader development goals. It emphasizes that countries must: (1) act early with an eye on the end-goal; (2) go beyond prices with a policy package that triggers changes in investment patterns, technologies and behaviors; and (3) mind the political economy and smooth the transition for those who stand to be most affected.