This view is a combination of technical pessimism and unjustified moral optimism: we are not going to have the energy and the technology to do climate engineeri

This view is a combination of technical pessimism and unjustified moral optimism: we are not going to have the energy and the technology to do climate engineering, but we will have overcome the tragedy of the commons through individual awareness. Planetary engineering and government coercion (even including Western nations forcing Asia to decarbonize) are more likely outcomes than people voluntarily internalizing their externalities. (All of this probably assumes too much business as usual in 2050. It looks increasingly unlikely we will get there without inventing recursively self-improving artificial intelligence, abandoning the pre-AI course of history.)