97
Table 5.6a shows value-added by industry sector and their shares. Total valueadded of the top five industries accounts for 51% of the GDP, but the total CO 2
emissions from these industries is merely 10% of the total. In contrast, Table 5.6b,
where industries are sorted in descending order of CO 2 emissions, the sum of emissions from the top five industries account for 52% of the total, but the sum of valueadded is merely 24% of the GDP. Furthermore, according to Table 5.6c, where
industries are sorted by CO 2 emissions per ¥1 trillion of value-added, the sum of
industries between 26th and 37th from the lowest value-added accounts for 71% of
the GDP. However, the sum of CO 2 emissions remains at only 13% of the total.
Just because an industry’s value-added is large, it does not mean that the amount
of CO 2 emitted is necessarily large, or vice versa. Needless to say, the most desirable combination is large value-added with small CO 2 emissions. Building on this,
the major issues to be addressed are as follows:
Table 5.6a (continued)
Order Industry, etc.
Amount of
valueadded
(Trillions
of yen)
Percentage
(%)
Volume of
CO 2
emissions
(kt)
Percentage
(%)
Volume of
CO 2
emissions
per one
billion yen
worth of
value-added
(t)
31
Industrial machinery
and devices
manufacturing industry
1.51
0.3%
4,035
0.3%
2,675
32
Plastic, rubber, and
leather products
manufacturing
industries
1.46
0.3%
10,000
0.8%
6,850
33
Telecommunications
machinery and devices
manufacturing industry
1.28
0.2%
2,319
0.2%
1,818
34
Wood products,
furniture, and other
industries
0.70
0.1%
2,563
0.2%
3,658
35
Education and learning
assistance industry
0.68
0.1%
17,772
1.4%
26,121
36
Mining industry, etc.
0.35
0.1%
2,489
0.2%
7,164
37
Academic research,
specialized, and
technology services
0.28
0.1%
5,591
0.4%
20,263
38
Households (all
energies)
224,098
17.9%
Total
523.08
1,254,201 100.0%
2,398
5.3 Reducing CO 2 Emissions by 80% Across Japan
Table 5.6a shows value-added by industry sector and their shares. Total valueadded of the top five industries accounts for 51% of the GDP, but the total CO 2
emissions from these industries is merely 10% of the total. In contrast, Table 5.6b,
where industries are sorted in descending order of CO 2 emissions, the sum of emissions from the top five industries account for 52% of the total, but the sum of valueadded is merely 24% of the GDP. Furthermore, according to Table 5.6c, where
industries are sorted by CO 2 emissions per ¥1 trillion of value-added, the sum of
industries between 26th and 37th from the lowest value-added accounts for 71% of
the GDP. However, the sum of CO 2 emissions remains at only 13% of the total.
Just because an industry’s value-added is large, it does not mean that the amount
of CO 2 emitted is necessarily large, or vice versa. Needless to say, the most desirable combination is large value-added with small CO 2 emissions. Building on this,
the major issues to be addressed are as follows:
Table 5.6a (continued)
Order Industry, etc.
Amount of
valueadded
(Trillions
of yen)
Percentage
(%)
Volume of
CO 2
emissions
(kt)
Percentage
(%)
Volume of
CO 2
emissions
per one
billion yen
worth of
value-added
(t)
31
Industrial machinery
and devices
manufacturing industry
1.51
0.3%
4,035
0.3%
2,675
32
Plastic, rubber, and
leather products
manufacturing
industries
1.46
0.3%
10,000
0.8%
6,850
33
Telecommunications
machinery and devices
manufacturing industry
1.28
0.2%
2,319
0.2%
1,818
34
Wood products,
furniture, and other
industries
0.70
0.1%
2,563
0.2%
3,658
35
Education and learning
assistance industry
0.68
0.1%
17,772
1.4%
26,121
36
Mining industry, etc.
0.35
0.1%
2,489
0.2%
7,164
37
Academic research,
specialized, and
technology services
0.28
0.1%
5,591
0.4%
20,263
38
Households (all
energies)
224,098
17.9%
Total
523.08
1,254,201 100.0%
2,398
5.3 Reducing CO 2 Emissions by 80% Across Japan