The NY Times reports:
China, the world’s leading emitter of greenhouse gases from coal, has been burning up to 17 percent more coal a year than the government previously disclosed, according to newly released data. The finding could complicate the already difficult efforts to limitglobal warming.
Even for a country of China’s size, the scale of the correction is immense. The sharp upward revision in official figures means that China has released much more carbon dioxide — almost a billion more tons a year according to initial calculations — than previously estimated.
The new data, which appeared recently in an energy statistics yearbook published without fanfare by China’s statistical agency, show that coal consumption has been underestimated since 2000, and particularly in recent years. The revisions were based on a census of the economy in 2013 that exposed gaps in data collection, especially from small companies and factories.
Illustrating the scale of the revision, the new figures add about 600 million tons to China’s coal consumption in 2012 — an amount equivalent to more than 70 percent of the total coal used annually by the United States.
That extra 600 million tons is nine times greater than the total emissions of New Zealand.