China’s CO2 emissions now stand at 12 Gtons. China emits twice as much CO2 as the United States, and its per capita level of emissions is above the average EU level.
Energy use is very hard to assess by sector, because what in most economies would be attributed to the construction sector falls under raw materials in China: the 10% share of construction is grossly underestimated, while the huge manufacturing share is somewhat exaggerated. Again, here we find very different estimates among Chinese official sources. The metallurgic and cement sectors (60% of the world’s output) are sometimes estimated to represent as much as 20% of energy consumption each (and together with aluminum, 30% of CO2 emissions): these figures would look different if construction was assessed more realistically.