I agree that technology in terms of energy supply will be important, but is terraforming really a sensible option? Given how little we understand the climate, trying to manipulate it in this way feels like a very risky manoevre.
And there are big problems here in terms of externalities: my 'improved' climate might be disaster for you.
That depends on what you mean by terraforming. If it is use nuclear bombs to cause huge volcano eruption, it is obviously stupid, but if it is using mirror to heat up air behind the cyclone makes it dissolve or change route, it's a great idea we should try. And we'll learn a lot about the climate in the process.
> my 'improved' climate might be disaster for you.
People tend to like the same kind of climate, so it will be disaster mostly for white bears and desert lizards. Of course it's possible that someone tries to improve climate in his location, by making it worse in other places, but that is not a risk introduced by terraforming.
And there are big problems here in terms of externalities: my 'improved' climate might be disaster for you.