Taiwan’s GHG Emissions

Taiwan’s greenhouse gas emission statistics are based on national greenhouse gas inventories established according to the Guidelines for National Greenhouse Gas Inventories issued by Intergovernmental Panel on Climate Change (IPCC) and with reference to uncertainty management and estimated according to actual situations. Total greenhouse gas (GHG) emission increased from 147,109 kilotons of carbon dioxide equivalents (excluding carbon dioxide removal) in 1990 to 284,515 kilotons of carbon dioxide equivalents (excluding carbon dioxide removal) in 2008, indicating the emission increased by 93.40% and the annual growth rate was 3.73%. But emission in 2008 was less than that of 2007 by 4.14%. Net greenhouse gas emission increased from 128,406 kilotons of carbon dioxide equivalents in 1990 to 264,707 kilotons of carbon dioxide equivalents in 2008, indicating the emission increased by 106.15% and the annual growth rate increased by 4.10%. But net emission in 2008 was less than in 2007 by 4.46%. The data are shown in Table 1 and Figure 1.

 

Table 1. Taiwan Greenhouse Gas Emission Inventories from Year 1990 to Year 2008 by Gas Type

 


Figure 1. Taiwan Greenhouse Gas Emission Trend by Gas Type between 1990 and 2008 Data
source: EPA Executive Yuan (except data of carbon dioxide emission due to fuel combustion by energy sector came from Bureau of Energy Ministry of Economic Affairs).

 

By gas type, the largest source of greenhouse gas emission in Taiwan is carbon dioxide, followed by nitrous oxide and fluorinated greenhouse gas. Between 1990 and 2008, carbon dioxide emission increased by 115.37% and the annual growth rate was 4.35%; methane emission decreased by 60.52% and the annual growth rate was -5.03%; nitrous oxide emission decreased by 14.90% and the annual growth rate was -0.89%.

By energy consumption sector, in 1990 energy sector had 75.36% of total greenhouse gas emission in Taiwan (not including land use change and forest absorption), industrial manufacturing sector had 7.98%, agriculture sector had 9.70%, waste treatment sector had 6.98%; and in 2008, energy sector had 88.59% of total greenhouse gas emission (not including land use change and forest absorption), industrial manufacturing sector had 6.09%, agriculture sector had 4.03%, waste treatment sector had 1.28%; energy sector has always been the largest sector for Taiwan’s greenhouse gas emission. The greenhouse gas emission trend between 1990 and 2008 for each sector in Taiwan is shown in Table 2 and Figure 2.

The change in greenhouse gas emission for each sector between 1990 and 2008 is analyzed below. The greenhouse gas emission by energy sector increased by 127.36% and the annual growth rate was 4.67%; the greenhouse gas emission from the manufacturing industry increased by 47.71% and the annual growth rate was 2.19%; the greenhouse gas emission from the agriculture sector decreased by 19.62% and the annual growth rate was ‒1.21%; the greenhouse gas emission by waste treatment sector decreased by 64.36% and the annual growth rate was ‒5.57%; the greenhouse gas emission by land use and forestry sector increased by 5.90 % and the annual growth rate was 0.32%. Year 2008 had less total 2008 greenhouse gas emission than year 2007 by 4.14%, in which energy sector had 4.09% decrease, manufacturing industry sector had 7.37% decrease, agriculture sector had 6.38% decrease and waste treatment had 20.48% increase, and land use and forestry sector had 0.39% increase.

In summary of level estimate analysis and trend estimate analysis, the key greenhouse gas emission sources are energy industry and manufacturing industry and construction, all of which are due to fuel combustion.

 

Table 2 Taiwan Greenhouse Gas Emission Inventories from Year 1990 to Year 2008 by Sector

 


Figure 2. Taiwan Greenhouse Gas Emission Trend by Sector between 1990 and 2008 Data
source: EPA Executive Yuan (except data of carbon dioxide emission due to fuel combustion by energy sector came from Bureau of Energy Ministry of Economic Affairs).