First of all, China is choking in its own filth, so transitioning from coal fired power and low emmission vehicles is essential to national health and is not a sacrifice to save the planet.   In addition, two generations of a "one child policy", are about to send their population plunging.   Meeting climate commitments will largely occur without economic pain as population shrinks.  Not the same circumstances as North America where the starting point is clean air and water and world class environmental protection.