Interestingly, China's CO2 emissions seem to have stopped skyrocketing - they are set to stabilize this year, and they are currently undergoing a massive growth in manufacturing solar capacity, and as all PV that's currently being manufactured gets installed, their CO2 emissions are expected to significantly decrease already within 2-3 years.
It looks like we have passed the tipping point where switch to renewables happens not because of policy constraints but simply because it's cheaper now.