"But really it doesn't matter. Air transport is 2.5% of global CO2." Because most people still cannot afford flying. If the world gets richer, more people want

"But really it doesn't matter. Air transport is 2.5% of global CO2." Because most people still cannot afford flying. If the world gets richer, more people want the privilege of flying. And it is not like we have an excess budget of CO2. Everything we reduce helps, so a carbon tax on jet fuel might be a good start. That is a low hanging fruit. Spreading nuclear reactors worldwide really is not. That would be a very hard fruit, with lots of potential side effects. Or do you think bangladesh will build to standards you think are safe?