Environmental Engineering Reference
In-Depth Information
᧤⚷
㪖
䏳
/
ₖ⏒
2005
᧹
100
᧥
3.5
3.40
3.0
2.60
2.5
2.29
2.21
2.03
2.0
1.90
1.77
1.71
1.60
1.47
1.5
1.37
1.31
1.25
1.20
1.16
1.22
1.28
1.28
1.24
1.18
1.12
1.08
1.0
Fig. 1.5
China's energy intensity (1980-2009) (Source: China Statistical Yearbook 2010, calcu-
lated by Xuan Xiaowei)
Table 1.6
Growth rate of
Co
2
emission in China
Time Growth rate (%)
1980 ~ 2000 4.4
2000 ~ 2005 10.1
2005 ~ 2009 6.4
1980 ~ 2009 5.6
Source: National Bureau of Statistics and calculations of Xuan
Xiaowei
3. Factor Analysis of CO
2
Emission Intensity
The change in intensity of CO
2
emissions can be divided into two factors, the
energy structure and the energy consumption change. Table
1.7
displays that
from 1990 to 2009, the intensity fell by 53.01 %; 97.6 % of the decrease is from
the energy intensity change, only 2.4 % from the change of energy structure. It is
safe to conclude that, in the past 30 years, the changes in CO
2
emission intensity
mainly results from changes in energy intensity, not from changes in the energy
structure.
