Note: The following article appeared in New Republic. Shanghai, China—This week, I'm traveling around China trying to get a better sense for the country's energy and environmental policies (the trip is being sponsored by the China-U.S. Exchange Foundation). On a very broad level, there are two big, contradictory facts about the country to consider. One is that China is working far more frantically than we are to rein in its greenhouse-gas pollution and promote cleaner energy