抄録
CO_2 emission caused by production of building materials depends on the industrial structure and efficiency. The quantities of building materials used in building are different in which brick is mainly used in China and steel in Japan. Energy and CO_2 emission due to production of building materials in China are larger than in Japan. This paper shows CO_2 emission due to the building construction in China is 2 or 3 times larger. CO_2 emission of electricity (kg- CO_2/kWh) is also 2 or 3 times larger in China compared with Japan, because 40% of electricity is generated by nuclear power station in Japan.
