By 2050, energy demand of developing countries will exceed total energy demand of OECD countries. Access to abundant clean energy will facilitate rapid economic growth in the developing world, and with it plummeting maternal and infant mortality, billions lifted out of extreme poverty, and 15 years added to the average lifespan of sub-Saharan Africans. Advances in food production will intensify crop yields and improve distribution. And the US and a handful of other world powers will lead the way for continued innovation in clean energy technology and accessibility.