Oldgit, the harm to Earth caused by China is greater; this was my point. The largest polluter, China, emits about 10,357 million metric tons per year compared to the United States, second, with about 5,414 million metric tons. Pollution in metric tons per person per year: China 7.47, USA 16.54. Ratio of USA over China = 2.22. Besides China’s pop is only 4.24 that of America’s, not five times.