Just to remind everyone. The prevailing winds are West to East (e.g., it takes less time to fly Hong Kong to the U.S. than vice versa). That’s another way of saying that what burns in China (coal) has emissions which don’t stay in China; they end up in California, trapped by the mountains, then eventually are dispersed to the rest of the U.S. Obama’s Climate Accord adds to U.S. pollution! Our relatively clear air goes to Europe.