You forgot to mention that he worked for BP. And he wasn’t president of Caltech. He is also theoretical physicist who does urban engineering neither of which make him qualified on climate science.
Market based solutions won’t be enough. We are very lucky that clean electricity is cheap. But there some emissions that will never switch because of economics. Airlines are a good example, where fossil fuel will be always cheaper than green alternatives. We will have to force them by raising fossil prices with carbon tax or by banning them. Some would call the former market based but that isn’t what they mean.
Market based solutions won’t be enough. We are very lucky that clean electricity is cheap. But there some emissions that will never switch because of economics. Airlines are a good example, where fossil fuel will be always cheaper than green alternatives. We will have to force them by raising fossil prices with carbon tax or by banning them. Some would call the former market based but that isn’t what they mean.