As the world speeds up the transition to renewables and away from fossil fuels, China is betting bigger than anyone else on the energy technologies that will power the world for decades to come. Environmentalist and author Bill McKibben joins Ian Bremmer on GZERO World to talk about Beijing’s wholehearted embrace of clean energy compared to the US. It’s not just that they’re manufacturing solar panels or putting up wind farms, McKibben says, they’re investing in a technology that will transform the global economy.