Let me remind you what we already k

Let me remind you what we already know. We have a population that's both growing and aging; we have seven billion souls today heading to 10 billion at the end of the century; we consume natural resources faster than they can be replenished; and the emissions that are mainly responsible for climate change just keep increasing. Now clearly, these are environmental and social issues, but that's not all. They're economic issues, and that makes them relevant to risk and return. And they are really complex and they can seem really far off, that the temptation may be to do this: bury our heads in the sand and not think about it. Resist this, if you can. Don't do this at home. (Laughter)