CO2削減プロジェクト86種類と飛行機に荷物を搭載しない効果との比較
目次
1:「Project Drawdown」とは
2:1人当たり1日当たりのCO2排出量の削減効果比較
3:1人当たり1年間当たりのCO2排出量の削減効果比較
1:「Project Drawdown」とは
「このデータを見てもまだ荷物を飛行機に持ち込みますか?」では、主に日本の環境省のデータを用いて1人1日当たりのCO2排出量削減比較を行いました。今回は「Project Drawdown」のデータを用いて、より多くのCO2排出量削減効果との比較を行います。
「Project Drawdown」では、190人の研究者・専門家・科学者の国際的なグループが結集し、気候変動に対する現実的かつ大胆な解決策をまとめ、「Drawdown: The Most Comprehensive Plan Ever Proposed to Reverse Global Warming(邦題:DRAWDOWNドローダウン― 地球温暖化を逆転させる100の方法)」という本を出版しました。世界をリードする科学者と政策立案者の綿密な調査に基づき2020年から2050年までの解決策を網羅した本として、世界中で高く評価されています。
「Project Drawdown」の最新データは「https://drawdown.org」で見ることができます。当社ではこの最新データを用いて、日本旅行時の飛行機への20kg荷物搭載を止めた場合に得られるCO2排出量削減効果を、同書が提案する気候変動の各対策と比較しました。当社が使用したデータはScenario 1です。Scenario 1とは2100年までに気温上昇を2度に抑えるシナリオです。「Project Drawdown」には1.5度までに気温上昇を抑えるScenario 2も併記されています。
CO2排出量の削減効果(Drawdown Scenario 1 and 2)
SOLUTION | SECTOR(S) | SCENARIO 1 | SCENARIO 2 | |
Gigatons CO2 Equivalent Reduced / Sequestered (2020–2050) | ||||
1 | Reduced Food Waste | Food, Agriculture, and Land Use / Land Sinks | 88.5 | 102.2 |
2 | Plant-Rich Diets | Food, Agriculture, and Land Use / Land Sinks | 78.3 | 103.1 |
3 | Family Planning and Education | Health and Education | 68.9 | 68.9 |
4 | Refrigerant Management | Industry / Buildings | 57.2 | 57.2 |
5 | Tropical Forest Restoration | Land Sinks | 54.5 | 85.1 |
6 | Onshore Wind Turbines | Electricity | 47.0 | 143.6 |
7 | Alternative Refrigerants | Industry / Buildings | 42.7 | 48.8 |
8 | Utility-Scale Solar Photovoltaics | Electricity | 40.8 | 111.6 |
9 | Clean Cooking | Buildings | 31.4 | 76.3 |
10 | Distributed Solar Photovoltaics | Electricity | 26.7 | 64.9 |
11 | Silvopasture | Land Sinks | 26.6 | 42.3 |
12 | Methane Leak Management | Other Energy | 25.8 | 31.3 |
13 | Peatland Protection and Rewetting | Food, Agriculture, and Land Use / Land Sinks | 25.4 | 40.3 |
14 | Tree Plantations (on Degraded Land) | Land Sinks | 22.0 | 35.1 |
15 | Temperate Forest Restoration | Land Sinks | 19.4 | 27.9 |
16 | Concentrated Solar Power | Electricity | 18.0 | 21.5 |
17 | Perennial Staple Crops | Land Sinks | 16.3 | 32.9 |
18 | Insulation | Electricity / Buildings | 15.4 | 18.5 |
19 | Regenerative Annual Cropping | Food, Agriculture, and Land Use / Land Sinks | 15.1 | 23.2 |
20 | Tree Intercropping | Land Sinks | 15.0 | 24.4 |
21 | LED Lighting | Electricity | 14.5 | 15.7 |
22 | Managed Grazing | Land Sinks | 13.7 | 20.9 |
23 | Multistrata Agroforestry | Land Sinks | 13.3 | 23.9 |
24 | Conservation Agriculture | Food, Agriculture, and Land Use / Land Sinks | 12.8 | 8.1 |
25 | Abandoned Farmland Restoration | Land Sinks | 12.5 | 20.3 |
26 | Recycling | Industry | 10.4 | 11.3 |
27 | Offshore Wind Turbines | Electricity | 10.2 | 9.9 |
28 | Improved Rice Production | Food, Agriculture, and Land Use / Land Sinks | 9.9 | 14.4 |
29 | Building Automation Systems | Electricity / Buildings | 9.6 | 14.0 |
30 | Public Transit | Transportation | 9.4 | 15.4 |
31 | Efficient Trucks | Transportation | 9.2 | 10.8 |
32 | Carpooling | Transportation | 9.1 | 11.1 |
33 | High-Performance Glass | Electricity / Buildings | 8.8 | 11.3 |
34 | Indigenous Peoples’ Forest Tenure | Food, Agriculture, and Land Use / Land Sinks | 8.7 | 12.5 |
35 | Bamboo Production | Land Sinks | 7.7 | 19.6 |
36 | Alternative Cement | Industry | 7.7 | 15.6 |
37 | Electric Cars | Transportation | 7.7 | 9.8 |
38 | Smart Thermostats | Electricity / Buildings | 6.9 | 7.3 |
39 | Efficient Ocean Shipping | Transportation | 6.7 | 9.8 |
40 | Waste to Energy | Electricity / Industry | 6.3 | 5.2 |
41 | District Heating | Electricity / Buildings | 6.2 | 9.7 |
42 | Geothermal Power | Electricity | 6.2 | 9.2 |
43 | Methane Digesters | Electricity / Industry | 6.0 | 7.1 |
44 | Forest Protection | Food, Agriculture, and Land Use / Land Sinks | 5.6 | 8.8 |
45 | Efficient Aviation | Transportation | 5.3 | 5.8 |
46 | Biogas for Cooking | Buildings | 4.7 | 9.7 |
47 | Improved Cattle Feed | Food, Agriculture, and Land Use | 4.4 | 15.1 |
48 | Recycled Metals | Industry | 4.3 | 12.3 |
49 | High-Efficiency Heat Pumps | Electricity / Buildings | 4.0 | 9.1 |
50 | Perennial Biomass Production | Land Sinks | 4.0 | 7.0 |
51 | Seafloor Protection | Food, Agriculture, and Land Use | 3.8 | 5.1 |
52 | Reduced Plastics | Industry | 3.8 | 5.4 |
53 | Solar Hot Water | Electricity / Buildings | 3.4 | 13.7 |
54 | Grassland Protection | Food, Agriculture, and Land Use / Land Sinks | 3.4 | 4.3 |
55 | Improved Manure Management | Food, Agriculture, and Land Use | 3.3 | 6.1 |
56 | Nuclear Power | Electricity | 3.2 | 3.6 |
57 | System of Rice Intensification | Food, Agriculture, and Land Use / Land Sinks | 2.9 | 4.4 |
58 | Walkable Cities | Transportation | 2.8 | 3.5 |
59 | Nutrient Management | Food, Agriculture, and Land Use | 2.8 | 11.5 |
60 | Bicycle Infrastructure | Transportation | 2.7 | 4.6 |
61 | Telepresence | Transportation | 2.6 | 4.4 |
62 | Biomass Power | Electricity | 2.6 | 3.6 |
63 | Macroalgae Protection and Restoration | Coastal and Ocean Sinks | 2.6 | 3.8 |
64 | Seaweed Farming | Coastal and Ocean Sinks / Coastal and Ocean Sinks | 2.5 | 4.7 |
65 | Recycled Paper | Industry | 2.3 | 2.9 |
66 | Electric Trains | Transportation | 1.9 | 3.3 |
67 | Small Hydropower | Electricity | 1.7 | 3.2 |
68 | Hybrid Cars | Transportation | 1.6 | 4.7 |
69 | Electric Bicycles | Transportation | 1.4 | 1.6 |
70 | Biochar Production | Engineered Sinks | 1.4 | 3.0 |
71 | Sustainable Intensification for Smallholders | Food, Agriculture, and Land Use / Land Sinks | 1.4 | 0.7 |
72 | Bioplastics | Industry | 1.3 | 2.5 |
73 | Ocean Power | Electricity | 1.3 | 0.8 |
74 | High-Speed Rail | Transportation | 1.3 | 3.6 |
75 | Coastal Wetland Protection | Food, Agriculture, and Land Use / Coastal and Ocean Sinks | 1.2 | 1.6 |
76 | Farm Irrigation Efficiency | Food, Agriculture, and Land Use | 1.1 | 2.1 |
77 | Composting | Industry | 1.1 | 1.4 |
78 | Improved Fisheries | Food, Agriculture, and Land Use / Coastal and Ocean Sinks | 1.0 | 1.5 |
79 | Low-Flow Fixtures | Electricity / Buildings | 0.9 | 1.5 |
80 | Coastal Wetland Restoration | Coastal and Ocean Sinks | 0.8 | 1.0 |
81 | Water Distribution Efficiency | Electricity | 0.6 | 0.9 |
82 | Green and Cool Roofs | Electricity / Buildings | 0.5 | 1.0 |
83 | Recycled Plastics | Industry | 0.5 | 1.7 |
84 | Improved Aquaculture | Food, Agriculture, and Land Use | 0.5 | 0.8 |
85 | Dynamic Glass | Electricity / Buildings | 0.3 | 0.5 |
86 | Micro Wind Turbines | Electricity | 0.1 | 0.1 |
Total | 1,047.0 | 1,638.7 |
出所:Project Drawdown
2:1人当たり1日当たりのCO2排出量の削減効果比較
「Project Drawdown」の1人当たりCO2排出量削減効果を計算するにあたり、2020年時点の世界人口(78.2億人)、OECDの人口(13.7億人)、High income国の人口(12.4億人)の3パターンを使用しました。OECDの人口やHigh income国の人口を使用したのは、世界のCO2排出量は先進国がより多いため、その削減余地も先進国が大きいと考えるためです。なお、2019年データでは世界のCO2排出量に占める割合はOECDが34%、High income国が35%です。
「Project Drawdown」に記載されているCO2削減プロジェクト86種類(Scenario 1のデータ)を1人1日当たりのCO2削減量として計算すると、最大の削減効果は「Reduced Food Waste(食品ロス削減)」、2番目に大きな効果は「Plant-Rich Diets(植物性食品を多く含む食事)」でした。「Reduced Food Waste(食品ロス削減)」の1日当たりCO2排出量の削減効果は、世界人口の1人当たり1.0kg、OECD人口の1人当たり5.9kg、High income国人口の1人当たり6.5kgとなります。
「このデータを見てもまだ荷物を飛行機に持ち込みますか?」で分析したように、日本旅行時の飛行機への20kg荷物搭載を止めた場合のCO2排出量削減効果(世界19か国からの片道平均)は74.5kgです。これは「Project Drawdown」に記載されたあらゆるCO2排出量の削減効果と比較し10倍以上の効果となります。
1人当たり1日当たりのCO2排出量の削減効果 (kg)
SOLUTION | World population | OECD poluration | High income population |
Reduced 20kg luggage (One way to Japan) | 74.50 | 74.50 | 74.50 |
Reduced Food Waste | 1.03 | 5.90 | 6.51 |
Plant-Rich Diets | 0.91 | 5.22 | 5.76 |
Family Planning and Education | 0.80 | 4.59 | 5.07 |
Refrigerant Management | 0.67 | 3.81 | 4.21 |
Tropical Forest Restoration | 0.64 | 3.63 | 4.01 |
Onshore Wind Turbines | 0.55 | 3.13 | 3.46 |
Alternative Refrigerants | 0.50 | 2.85 | 3.14 |
Utility-Scale Solar Photovoltaics | 0.48 | 2.72 | 3.00 |
Clean Cooking | 0.37 | 2.09 | 2.31 |
Distributed Solar Photovoltaics | 0.31 | 1.78 | 1.96 |
Silvopasture | 0.31 | 1.77 | 1.96 |
Methane Leak Management | 0.30 | 1.72 | 1.90 |
Peatland Protection and Rewetting | 0.30 | 1.69 | 1.87 |
Tree Plantations (on Degraded Land) | 0.26 | 1.47 | 1.62 |
Temperate Forest Restoration | 0.23 | 1.29 | 1.43 |
Concentrated Solar Power | 0.21 | 1.20 | 1.32 |
Perennial Staple Crops | 0.19 | 1.09 | 1.20 |
Insulation | 0.18 | 1.03 | 1.13 |
Regenerative Annual Cropping | 0.18 | 1.01 | 1.11 |
Tree Intercropping | 0.18 | 1.00 | 1.11 |
LED Lighting | 0.17 | 0.96 | 1.06 |
Managed Grazing | 0.16 | 0.91 | 1.01 |
Multistrata Agroforestry | 0.15 | 0.88 | 0.98 |
Conservation Agriculture | 0.15 | 0.85 | 0.94 |
Abandoned Farmland Restoration | 0.15 | 0.83 | 0.92 |
Recycling | 0.12 | 0.69 | 0.76 |
Offshore Wind Turbines | 0.12 | 0.68 | 0.75 |
Improved Rice Production | 0.12 | 0.66 | 0.72 |
Building Automation Systems | 0.11 | 0.64 | 0.70 |
Public Transit | 0.11 | 0.63 | 0.69 |
Efficient Trucks | 0.11 | 0.61 | 0.67 |
Carpooling | 0.11 | 0.60 | 0.67 |
High-Performance Glass | 0.10 | 0.59 | 0.65 |
Indigenous Peoples’ Forest Tenure | 0.10 | 0.58 | 0.64 |
Bamboo Production | 0.09 | 0.51 | 0.57 |
Alternative Cement | 0.09 | 0.51 | 0.57 |
Electric Cars | 0.09 | 0.51 | 0.56 |
Smart Thermostats | 0.08 | 0.46 | 0.51 |
Efficient Ocean Shipping | 0.08 | 0.45 | 0.49 |
Waste to Energy | 0.07 | 0.42 | 0.46 |
District Heating | 0.07 | 0.41 | 0.45 |
Geothermal Power | 0.07 | 0.41 | 0.45 |
Methane Digesters | 0.07 | 0.40 | 0.44 |
Forest Protection | 0.06 | 0.37 | 0.41 |
Efficient Aviation | 0.06 | 0.35 | 0.39 |
Biogas for Cooking | 0.05 | 0.31 | 0.34 |
Improved Cattle Feed | 0.05 | 0.29 | 0.33 |
Recycled Metals | 0.05 | 0.29 | 0.32 |
High-Efficiency Heat Pumps | 0.05 | 0.27 | 0.30 |
Perennial Biomass Production | 0.05 | 0.27 | 0.29 |
Seafloor Protection | 0.04 | 0.25 | 0.28 |
Reduced Plastics | 0.04 | 0.25 | 0.28 |
Solar Hot Water | 0.04 | 0.23 | 0.25 |
Grassland Protection | 0.04 | 0.22 | 0.25 |
Improved Manure Management | 0.04 | 0.22 | 0.25 |
Nuclear Power | 0.04 | 0.21 | 0.23 |
System of Rice Intensification | 0.03 | 0.19 | 0.21 |
Walkable Cities | 0.03 | 0.19 | 0.21 |
Nutrient Management | 0.03 | 0.18 | 0.20 |
Bicycle Infrastructure | 0.03 | 0.18 | 0.20 |
Telepresence | 0.03 | 0.18 | 0.19 |
Biomass Power | 0.03 | 0.17 | 0.19 |
Macroalgae Protection and Restoration | 0.03 | 0.17 | 0.19 |
Seaweed Farming | 0.03 | 0.17 | 0.18 |
Recycled Paper | 0.03 | 0.15 | 0.17 |
Electric Trains | 0.02 | 0.13 | 0.14 |
Small Hydropower | 0.02 | 0.11 | 0.12 |
Hybrid Cars | 0.02 | 0.11 | 0.12 |
Electric Bicycles | 0.02 | 0.09 | 0.10 |
Biochar Production | 0.02 | 0.09 | 0.10 |
Sustainable Intensification for Smallholders | 0.02 | 0.09 | 0.10 |
Bioplastics | 0.02 | 0.09 | 0.10 |
Ocean Power | 0.01 | 0.08 | 0.09 |
High-Speed Rail | 0.01 | 0.08 | 0.09 |
Coastal Wetland Protection | 0.01 | 0.08 | 0.09 |
Farm Irrigation Efficiency | 0.01 | 0.08 | 0.08 |
Composting | 0.01 | 0.08 | 0.08 |
Improved Fisheries | 0.01 | 0.07 | 0.07 |
Low-Flow Fixtures | 0.01 | 0.06 | 0.07 |
Coastal Wetland Restoration | 0.01 | 0.05 | 0.06 |
Water Distribution Efficiency | 0.01 | 0.04 | 0.04 |
Green and Cool Roofs | 0.01 | 0.04 | 0.04 |
Recycled Plastics | 0.01 | 0.03 | 0.04 |
Improved Aquaculture | 0.01 | 0.03 | 0.04 |
Dynamic Glass | 0.004 | 0.02 | 0.03 |
Micro Wind Turbines | 0.001 | 0.01 | 0.01 |
出所:Project Drawdown、観光庁、Worldometer、World Bank Data、ECTA、当社計算
注:Project DrawdownのScenario 1により計算
出所:Project Drawdown、観光庁、Worldometer、World Bank Data、ECTA、当社計算
注:一人当たり削減量はProject DrawdownのScenario 1、High income国の人口により計算、「Reduced 20kg luggage」は日本旅行における飛行機に20kgの荷物搭載を止めた場合のCO2排出量の削減効果(世界19か国からの片道平均)
3:1人当たり1年間当たりのCO2排出量の削減効果比較
日本の観光庁の「訪日外国人の消費動向(2019年)」 によれば、1年間当たりの外国人の訪日回数は平均1.8回でした。世界19ヵ国からの飛行距離・訪日客数・1年間当たりの訪日回数で計算すると、1人の旅行者が20kgの荷物を飛行機に搭載しないことで得られる1年間当たり(平均1.8回)のCO2排出量の削減効果は137kgとなりました。
1人当たり1年間当たりのCO2排出量の削減効果 (kg)
SOLUTION | World population | OECD poluration | High income population | |
1 | Reduced Food Waste | 377.2 | 2,152.9 | 2,377.3 |
2 | Plant-Rich Diets | 333.8 | 1,905.5 | 2,104.1 |
3 | Family Planning and Education | 293.7 | 1,676.1 | 1,850.8 |
4 | Refrigerant Management | 243.6 | 1,390.3 | 1,535.2 |
5 | Tropical Forest Restoration | 232.1 | 1,324.6 | 1,462.6 |
6 | Onshore Wind Turbines | 200.1 | 1,142.1 | 1,261.2 |
7 | Alternative Refrigerants | 182.1 | 1,039.5 | 1,147.8 |
8 | Utility-Scale Solar Photovoltaics | 174.0 | 993.3 | 1,096.8 |
Reduced 20kg luggage (1.8 round-trip to Japan) | 136.6 | |||
9 | Clean Cooking | 133.7 | 763.4 | 842.9 |
10 | Distributed Solar Photovoltaics | 113.6 | 648.3 | 715.9 |
11 | Silvopasture | 113.3 | 646.6 | 714.0 |
12 | Methane Leak Management | 110.1 | 628.4 | 693.9 |
13 | Peatland Protection and Rewetting | 108.3 | 617.9 | 682.3 |
14 | Tree Plantations (on Degraded Land) | 93.9 | 536.2 | 592.0 |
15 | Temperate Forest Restoration | 82.8 | 472.4 | 521.7 |
16 | Concentrated Solar Power | 76.7 | 437.9 | 483.5 |
17 | Perennial Staple Crops | 69.6 | 397.5 | 438.9 |
18 | Insulation | 65.6 | 374.1 | 413.1 |
19 | Regenerative Annual Cropping | 64.4 | 367.8 | 406.2 |
20 | Tree Intercropping | 64.1 | 365.6 | 403.7 |
21 | LED Lighting | 61.6 | 351.5 | 388.2 |
22 | Managed Grazing | 58.5 | 333.8 | 368.5 |
23 | Multistrata Agroforestry | 56.5 | 322.6 | 356.2 |
24 | Conservation Agriculture | 54.6 | 311.6 | 344.1 |
25 | Abandoned Farmland Restoration | 53.2 | 303.6 | 335.2 |
26 | Recycling | 44.2 | 252.0 | 278.3 |
27 | Offshore Wind Turbines | 43.6 | 248.6 | 274.5 |
28 | Improved Rice Production | 42.0 | 239.6 | 264.6 |
29 | Building Automation Systems | 40.7 | 232.3 | 256.5 |
30 | Public Transit | 40.1 | 229.2 | 253.0 |
31 | Efficient Trucks | 39.0 | 222.6 | 245.8 |
32 | Carpooling | 38.6 | 220.4 | 243.4 |
33 | High-Performance Glass | 37.6 | 214.6 | 236.9 |
34 | Indigenous Peoples’ Forest Tenure | 37.0 | 211.4 | 233.4 |
35 | Bamboo Production | 32.8 | 187.3 | 206.8 |
36 | Alternative Cement | 32.8 | 187.3 | 206.8 |
37 | Electric Cars | 32.6 | 186.3 | 205.8 |
38 | Smart Thermostats | 29.5 | 168.1 | 185.6 |
39 | Efficient Ocean Shipping | 28.6 | 163.5 | 180.5 |
40 | Waste to Energy | 26.7 | 152.5 | 168.4 |
41 | District Heating | 26.3 | 150.3 | 166.0 |
42 | Geothermal Power | 26.2 | 149.6 | 165.2 |
43 | Methane Digesters | 25.7 | 146.4 | 161.7 |
Reduced 20kg luggage (1.8 round-trip to Japan) | 136.6 | |||
44 | Forest Protection | 23.7 | 135.0 | 149.1 |
45 | Efficient Aviation | 22.5 | 128.7 | 142.1 |
Reduced 20kg luggage (1.8 round-trip to Japan) | 136.6 | |||
46 | Biogas for Cooking | 19.8 | 113.1 | 124.9 |
47 | Improved Cattle Feed | 18.8 | 107.5 | 118.7 |
48 | Recycled Metals | 18.4 | 104.8 | 115.8 |
49 | High-Efficiency Heat Pumps | 17.2 | 98.3 | 108.5 |
50 | Perennial Biomass Production | 17.0 | 97.3 | 107.4 |
51 | Seafloor Protection | 16.2 | 92.4 | 102.1 |
52 | Reduced Plastics | 16.0 | 91.5 | 101.0 |
53 | Solar Hot Water | 14.5 | 83.0 | 91.6 |
54 | Grassland Protection | 14.3 | 81.5 | 90.0 |
55 | Improved Manure Management | 14.2 | 81.3 | 89.7 |
56 | Nuclear Power | 13.5 | 77.1 | 85.2 |
57 | System of Rice Intensification | 12.4 | 70.5 | 77.9 |
58 | Walkable Cities | 12.1 | 68.8 | 76.0 |
59 | Nutrient Management | 11.8 | 67.4 | 74.4 |
60 | Bicycle Infrastructure | 11.6 | 66.4 | 73.3 |
61 | Telepresence | 11.3 | 64.2 | 70.9 |
62 | Biomass Power | 11.2 | 63.7 | 70.4 |
63 | Macroalgae Protection and Restoration | 11.1 | 63.5 | 70.1 |
64 | Seaweed Farming | 10.7 | 60.8 | 67.2 |
65 | Recycled Paper | 9.7 | 55.5 | 61.2 |
66 | Electric Trains | 8.1 | 46.5 | 51.3 |
67 | Small Hydropower | 7.0 | 40.1 | 44.3 |
68 | Hybrid Cars | 6.9 | 39.2 | 43.2 |
69 | Electric Bicycles | 5.9 | 33.8 | 37.3 |
70 | Biochar Production | 5.8 | 33.1 | 36.5 |
71 | Sustainable Intensification for Smallholders | 5.8 | 33.1 | 36.5 |
72 | Bioplastics | 5.7 | 32.4 | 35.7 |
73 | Ocean Power | 5.4 | 30.9 | 34.1 |
74 | High-Speed Rail | 5.4 | 30.7 | 33.8 |
75 | Coastal Wetland Protection | 5.1 | 29.2 | 32.2 |
76 | Farm Irrigation Efficiency | 4.8 | 27.5 | 30.4 |
77 | Composting | 4.8 | 27.5 | 30.4 |
78 | Improved Fisheries | 4.3 | 24.6 | 27.1 |
79 | Low-Flow Fixtures | 4.0 | 22.6 | 25.0 |
80 | Coastal Wetland Restoration | 3.2 | 18.5 | 20.4 |
81 | Water Distribution Efficiency | 2.6 | 14.8 | 16.4 |
82 | Green and Cool Roofs | 2.3 | 12.9 | 14.2 |
83 | Recycled Plastics | 2.2 | 12.6 | 14.0 |
84 | Improved Aquaculture | 2.1 | 12.2 | 13.4 |
85 | Dynamic Glass | 1.4 | 8.3 | 9.1 |
86 | Micro Wind Turbines | 0.4 | 2.2 | 2.4 |
出所:Project Drawdown、観光庁、Worldometer、World Bank Data、ECTA、当社計算
注:Project DrawdownのScenario 1により計算
注:一人当たり削減量はProject DrawdownのScenario 1、世界人口により計算、「Reduced 20kg luggage」は日本旅行における飛行機に20kgの荷物搭載を止めた場合のCO2排出量の削減効果(世界19か国からの片道平均)
この削減効果137kgを「Project Drawdown」が提案するCO2削減プロジェクト86種類の効果と比較すると、世界人口当たりでは9番目、OECDの人口当たりでは44番目、High income国の人口当たりでは46番目の効果となりました。世界の科学者が厳選した「地球温暖化を逆転させる100の方法」の中でもかなり良い順位です。飛行機への搭載荷物削減効果は、極めて大きいと言えるのではないでしょうか。
しかも「Project Drawdown」には、未完成の技術などを利用した上での2050年までのCO2削減効果も含まれています。飛行機への搭載荷物削減は今すぐできる施策です。更に飛行機への搭載荷物削減により、荷物の準備・運搬・衣類の洗濯・片付けが不要になります。また、高齢者や障害者、子連れ家族など移動困難者が旅行をしやすくなるため、トラベルディバイドを解消できます。良いこと尽くしの飛行機への搭載荷物削減を、すぐにでも実行しようではありませんか。