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World Energy Outlook 2007

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FGD units installed, along with the diversification of the power sector, explains<br />

the levelling-off of emissions around 2015. Increased availability of natural gas<br />

in medium and small cities and replacing coal in coal-fired boilers, will reduce<br />

air pollution and price reforms will discourage wasteful consumption, but it is<br />

likely to prove difficult to control the SO 2<br />

emissions from dispersed and varied<br />

industrial plants. Moreover, the level of fuel diversification seen in the<br />

Reference Scenario will not be sufficient to limit SO 2<br />

growth in the short term.<br />

China’s current ambient air quality trends are inconsistent with its emissions<br />

reduction targets, total emissions of major pollutants including SO 2<br />

are<br />

targeted to fall by 10%, or 8.4 million tonnes, under the 11 th Five-Year Plan for<br />

<strong>Energy</strong>. Much greater emissions reductions will be needed to achieve the targets<br />

(OECD, <strong>2007</strong>).<br />

35<br />

30<br />

Figure 9.11: SO 2<br />

Emissions by Sector in the Reference Scenario<br />

9<br />

million tonnes of SO 2<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

1990 1995 2000 2005 2010 2015 2020 2025 2030<br />

Power<br />

generation<br />

Industry<br />

Residential, services<br />

and agriculture<br />

Transport<br />

Oxides of nitrogen (NO x<br />

) are also formed during combustion; its release into<br />

the atmosphere is linked to environmental impacts including acidification,<br />

eutrophication and ozone formation. Transport is the fastest growing sector<br />

and rising vehicle ownership does not bode well for local air quality. Slowing<br />

or reversing the rise of NO x<br />

emissions from the transport sector presents<br />

difficulties because of the large number of individual sources. NO x<br />

emissions<br />

rise over the <strong>Outlook</strong> period, from 15 Mt in 2005 to 21 Mt in 2030<br />

(Table 9.8). Emissions of PM 2.5<br />

continue the declining trend seen since the<br />

mid-1990s, reaching 9 Mt in 2030 compared to 14 Mt in 2005.<br />

Chapter 9 - Reference Scenario Demand Projections 311

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