I'm not the person you're responding to, but I think the only way to fight climate change is by changing to an economy that doesn't rely on increasing production, and accepting a lower standard of living.
I see people blaming climate change on overpopulation, but this isn't really the truth - a majority of the world's energy usage comes from first world countries.
How much of a reduction are we talking about? Because if it's far enough, then it won't really be any different than the destruction of our civilization. At that point we might as well go full steam ahead into climate change, because the results of it aren't actually set in stone. The IPCC says that we still don't know how to properly model clouds in our climate change models - they could have a significant cooling or warming effect.
I see people blaming climate change on overpopulation, but this isn't really the truth - a majority of the world's energy usage comes from first world countries.