That is a really complicated question, and I wish I could give you a satisfactory answer.
All I can tell you is that we are starting to examine the macroeconomic implications of climate change. We have done a fair amount of work looking at the financial stability risks posed by climate change. That work is well advanced, and we're now trying to build economic models to start to get a sense of the consequences. It is a very complicated question.
Also, different countries have taken very different policy responses, and those also have different implications for the economy. I'm afraid to say.... We're looking at this and many others are looking at this, and I can't give you an answer at this point.