ᐃᮇ⯟✵༠఍పⅣ⣲♫఍ᐇ⾜ィ⏬
䝟䝽䞊䝫䜲䞁䝖ㄝ᫂㈨ᩱ

䠍䠊⯟✵ศ㔝䛾᤼ฟ๐ῶ䛾ᯟ⤌䜏䛸ྲྀ䜚⤌䜏䠄ᅜ㝿⥺䠅⯟✵ศ㔝䛸ி㒔㆟ᐃ᭩䛸䛾㛵ಀ¾ ᅜ㝿⯟✵䛛䜙᤼ฟ䛥䜜䜛 ᐊຠᯝ䜺䝇䛿䚸䝉䝉䜽䝍䞊䛾≉Ṧᛶ䠄䈜䠅䛛䜙᤼ฟ䛾ᅜู๭ᙜ䛜ᅔ㞴䛺䛯䜑ி㒔㆟ᐃ᭩䛻䛚䛔䛶䚸ᅜ㐃䛾ᑓ㛛ᶵ㛵䛷䛒䜛ᅜ㝿Ẹ㛫⯟✵ᶵ㛵䠄㻵㻯㻭㻻䠅
䜢㏻䛨䛶᤼ฟ๐ῶᑐ⟇䛻ྲྀ䜚⤌䜐䛣䛸䛜ᐃ䜑䜙䜜䛶䛔䜛䚹㻌㻌 㻌 㻌 䠄䈜䠅ᅜቃ䜢㉺䛘䚸䛚䜘䜃䚸බᾏୖ䛷᤼ฟ⾜Ⅽ䛜ᐇ᪋䛥䜜䜛䚸䜎䛯䚸እᅜ♫䛸䛾ඹྠ㐠㏦䛜㢖⦾䛻ᐇ᪋䛥䜜䜛➼䚹㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌䛺䛚䚸ᅜ㝿ᾏ㐠䝉䜽䝍䞊䛻䛴䛔䛶䛿䚸ᅜ㝿ᾏ஦ᶵ㛵䠄䠥䠩䠫䠅䛜ᢸᙜ䛩䜛䚹㻌

¾ 䛭䛾䛯䜑䚸ᅜ㝿⯟✵䛛䜙᤼ฟ䛥䜜䜛 ᐊຠᯝ䜺䝇䛿䚸ྛᅜ䛾᤼ฟ㔞䛻䛿ィୖ䛥䜜䛪䚸㻌ி㒔㆟ᐃ᭩௜ᒓ᭩䊠ᅜ䛻ㄢ䛥䜜䛯๐ῶ⩏ົ䠄᪥ᮏ䛿䛂㻞㻜㻜㻤䡚㻞㻜㻝㻞ᖺᖹᆒ䛷㻝㻥㻥㻜ᖺẚ㻌 㻌㻢㻑๐ῶ䛃䠅䛾እᯟ䛸䛺䛳䛶䛔䜛䚹㻌¾ ୍᪉䚸ᅜෆ⯟✵䛛䜙᤼ฟ䛥䜜䜛 ᐊຠᯝ䜺䝇䛿ྛᅜ䛾᤼ฟ㔞䛻ィୖ䛥䜜䚸ྛᅜ䛾㈐௵
䛻䛚䛔䛶᤼ฟ๐ῶᑐ⟇䛻ྲྀ䜚⤌䜐䛣䛸䛻䛺䛳䛶䛔䜛䚹㻌ᅜ㝿⯟✵ศ㔝䛻䛚䛡䜛᤼ฟ๐ῶ䜈䛾ྲྀ䜚⤌䜏䠄┠ᶆ䠅
¾ 㻞㻜㻝㻜ᖺ㻵㻯㻭㻻⥲఍Ỵ㆟䛻䛚䛔䛶䜾䝻䞊䝞䝹๐ῶ┠ᶆ䛜᥇ᢥ䛥䜜䛯䚹㻌
9 㻞㻜㻡㻜ᖺ䜎䛷⇞㈝ຠ⋡䜢ẖᖺ㻞㻑ᨵၿ㻌
9 㻞㻜㻞㻜ᖺ௨㝆䚸ᐊຠᯝ䜺䝇䛾᤼ฟ䜢ቑຍ䛥䛫䛺䛔䚹㻌䋻ᅜ㝿⯟✵䛾⤒῭ⓗᡂ㛗䜢㜼ᐖ䛧䛺䛔䛣䛸䚸ྛᅜ䛻ಶู䛾᤼ฟ๐ῶ䛾㈐ົ䜢๭䜚ᙜ䛶䛺䛔䛣䛸䜢๓ᥦ䛻䚸ඛ㐍ᅜ䛾䜏䛺䜙䛪䚸㏵ୖᅜ䜒ྵ䜑䛯ୡ⏺ඹ㏻┠ᶆ䛸䛺䛳䛶䛔䜛䚹䠄䈜䠅㻌㻌 䠄䈜䠅ᅜ㝿Ẹ㛫⯟✵᮲⣙䠄䝅䜹䝂᮲⣙䠅䛷䛿䚸⥾⣙ᅜ㛫䛾ᕪูⓗᚅ㐝䞉୙බᖹ䜢㑊䛡䜛䛣䛸䛜䚸ཎ๎䛸䛥䜜䛶䛔䜛䚹㻌㻝㻌䠎䠊⯟✵ศ㔝䛾᤼ฟ๐ῶ䜈䛾ྲྀ䜚⤌䜏䠄ᅜෆ⥺䠅䜟䛜ᅜ䛾㻯㻻㻞᤼ฟ㔞䛻༨䜑䜛ᅜෆ⯟✵ศ㔝䛾๭ྜ㻌ฟ඾䠖⎔ቃ┬䛂2010ᖺᗘ ᐊຠᯝ䜺䝇᤼ฟ㔞䛻䛴䛔䛶䛃䠄2012ᖺ4᭶☜ᐃ್䠅㻌 㻌 㻌 㻌 䝕䞊䝍䜢ᇶ䛻༠఍సᡂ

㐠㍺㒊㛛㻌㻌㻝㻥㻚㻡㻑㻌䠄⣙㻞㻚㻟൨䢀䢙䠅㻌௚㒊㛛㻌㻌㻤㻜㻚㻡㻑㻌䠄⣙㻥㻚㻢൨䢀䢙䠅㻌⮬ື㌴㻌㻌
㻤㻣㻚㻥㻑㻌⯪⯧㻠㻠㻚㻣㻑㻌㕲㐨㻟㻟㻚㻠㻑㻌⯟✵3.9%
䠄⣙㻥㻜㻜୓䢀䢙䠅㻌᪥ᮏ඲య䛾䛾㻯㻻㻞䛾㻜㻜㻚㻣㻡㻑㻌ி㒔㆟ᐃ᭩┠ᶆ㐩ᡂィ⏬䛻ᇶ䛵䛟ᅜෆ⯟✵ศ㔝䛾┠ᶆ

¾ 㻞㻜㻜㻤䡚㻞㻜㻝㻞ᖺᗘ䛾㻡ᖺ㛫ᖹᆒ䛾䜶䝛䝹䜼䞊ᾘ㈝ཎ༢఩䠄ே䜻䝻㍺㏦䛒䛯䜚䛾⇞ᩱᾘ㈝㔞䠅䜢㻝㻥㻥㻡ᖺᗘẚ䛷㻝㻡㻑ᨵၿ䛩䜛䚹㻌
CO2᤼ฟ㔞䠄୓䢀䢙䠅

ᨵၿ⋡
100%

㍺㏦㔞䠄൨ே䡳䢗䠅
900

1500
1400
㍺㏦㔞

1200

2010

2009

2008

2007

2006

2005

2004

2002

2001

2000

1999

1998

CO2᤼ฟ㔞

1997

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

1996

900
1995

600

1000
1996

83%

85%

700

1100

1995

90%

80%

800

1300

2003

95%

500

ฟ඾䠖⯟✵㍺㏦⤫ィᖺሗ䛚䜘䜃⎔ቃ┬බ⾲䝕䞊䝍䜢ᇶ䛻༠఍సᡂ䠎㻌䠏䠊ᮏ㑥⯟✵ᴗ⏺䛾๐ῶ┠ᶆ䛻䛴䛔䛶ᮏ㑥⯟✵ᴗ⏺䛾䛂పⅣ⣲♫఍ᐇ⾜ィ⏬䛃䐟௻ᴗάື䛻䛚䛡䜛㻞㻜㻞㻜ᖺ䛾๐ῶ┠ᶆ㻌
¾ 㻞㻜㻞㻜ᖺᗘ䛾䜶䝛䝹䜼䞊ᾘ㈝ཎ༢఩䠄᭷ൾ䝖䞁䜻䝻䝯䞊䝖䝹䠄䈜䠅䛒䛯䜚䛾⇞ᩱᾘ㈝㔞䠅䜢㻞㻜㻜㻡ᖺᗘẚ䛷㻞㻝㻑๐ῶ䛩䜛䚹㻌㻌 㻌 㻌 䠄䯲䠅᭷ൾ䝖䞁䜻䝻䝯䞊䝖䝹䛿⯟✵ᶵ䛾᭷ൾᦚ㍕≀䠄᪑ᐈ䞉㈌≀䞉㒑౽䠅㔜㔞䛻㣕⾜㊥㞳䜢஌䛨䛯䜒䛾䚹¾ ⯟✵㐠㏦஦ᴗ䛿ᅜෆ⥺䛸ᅜ㝿⥺䜢୍య䛷㐠Ⴀ䛧䛶䛔䜛䛯䜑䚸ᅜෆ⥺䛸ᅜ㝿⥺䜢ᑐ㇟䛸䛧䛶䛔䜛䚹㻌 㻌 㻌 㻌 㻌䠄⌧⾜䛾⎔ቃ⮬୺⾜ືィ⏬䛾ᑐ㇟⠊ᅖ䜒ྠᵝ䠅㻌¾ ᮏ๐ῶ┠ᶆ䛿⯟✵ᴗ⏺䛻䛸䛳䛶ண ୙⬟䛺኱䛝䛺䜲䝧䞁䝖䝸䝇䜽䠄䈜䠅䛜⏕䛨䛺䛔䛣䛸䜢๓ᥦ䛸䛧䛯ᩘ್㻌 㻌 㻌 㻌┠ᶆ䛷䛒䜛䚹㻌㻌 㻌 㻌 䠄䈜䠅኱㟈⅏䚸ⅆᒣᄇⅆ䚸᪂ᆺ䜲䞁䝣䝹䜶䞁䝄Ⓨ⏕➼䛾⮬↛⌧㇟䚸䝸䞊䝬䞁䞉䝅䝵䝑䜽➼䛾✺↛䛾⤒῭୙ἣ➼㻌㻌㻞㻜㻜㻡ᖺᖺᗘẚ㻞㻜㻞㻜ᖺᖺᗘ䛾ཎ༢఩䛒䛯䜚㻯㻻㻞᤼ฟ㔞๐ῶ⋡㻌㻌㻝㻜㻞㻑㻌㻝㻜㻜㻑㻌㻥㻤㻑㻌㻥㻢㻑㻌㻥㻠㻑㻌㻥㻞㻑㻌㻥㻜㻑㻌㻤㻤㻑㻌㻤㻢㻑㻌㻤㻠㻑㻌㻤㻞㻑㻌㻤㻜㻑㻌㻣㻤㻑㻌㻣㻢㻑㻌䠎䠍%๐ῶ䠏㻌䠐䠊๐ῶ┠ᶆ䛾㐩ᡂ䛻ྥ䛡䛯ྲྀ䜚⤌䜏䐟㻌 䠄᪂ᆺᶵᑟධ䠅㻌¾ ⯟✵䛻䛚䛡䜛㻯㻻㻞㉳※䛾⣙㻥㻥㻑䛿⯟✵ᶵ䛛䜙᤼ฟ䛥䜜䜛⯟✵ᶵ⇞ᩱ䛻䜘䜛䛯䜑䚸㻯㻯㻻 㻞 ᤼ฟ๐ῶ䛻᭱䜒኱䛝䛺ຠᯝ䛜䛒䜛᪋⟇䛿䚸䠄」ྜᮦ䛻䜘䜛ᶵయ䛾㍍㔞໬䜔⇞㈝ຠ⋡䛻ඃ䜜䛯䜶䞁䝆䞁䛾ᦚ㍕➼䛾䠅ඛ➃ᢏ⾡䜢᥇⏝䛧䛯᪂ᆺ⯟✵ᶵ䛾ᑟධ䚹㻌¾ ᮏ㑥⯟✵ྛ♫䛿䚸ୡ⏺䛻ඛ㥑䛡䛶㻮㻣㻤㻣䚸㻮㻣㻠㻣㻙㻤㻲䜢ᑟධ䛧䛶䛚䜚䚸௒ᚋ䜒✚ᴟⓗ䛻᪂ᆺ⯟✵ᶵ䛾ᑟධ䜢㐍䜑䚸㻯㻻㻞᤼ฟ๐ῶ䛻ດ䜑䛶⾜䛟᪉㔪䚹㻌㻮㻣㻤㻣㻌䠘᪂ᆺᶵ䛸ᚑ᮶ᶵ䛾䠟䠫䠎᤼ฟ㔞ẚ㍑䠚
B767
B787
䕿B787ᆺᶵ䛾୺䛺≉ᚩ㻌 䞉⯟✵ᶵ඲㔜㔞䛾䛖䛱⣙50%䛻᪂⣲ᮦ䛾䜹䞊䝪䞁䝣䜯䜲䝞䞊㻌 㻌 」ྜᮦᩱ䜢᥇⏝䛧䚸኱ᖜ䛺㍍㔞໬䜢ᐇ⌧㻌 䞉᪂ᆺ䜶䞁䝆䞁䛾᥇⏝䛚䜘䜃✵ຊᛶ⬟䛾ᨵၿ㻌 㻌 ୖグ䛻䜘䜚䚸ᚑ᮶ᶵ✀䛻ẚ䜉⣙20䠂⇞ᩱᾘ㈝㔞䛾๐ῶ㻌 㻌 䠄=CO2๐ῶ䠅䛜ྍ⬟䛸䛺䛳䛯䚹

B747
-200F
B747-8F

㻮㻣㻠㻣㻙㻤㻲㻌
䯲ᮏ㑥⯟✵ᴗ⏺䛷䛿௒ᚋ100ᶵ௨ୖ䛾ᑟධ䜢ணᐃ䛧䛶䛔䜛䚹ฟ඾䠖㻮㼛㼑㼕㼚㼓㈨ᩱ䜢ᇶ䛻༠఍సᡂ㻌䠐㻌䠐䠊๐ῶ┠ᶆ䛾㐩ᡂ䛻ྥ䛡䛯ྲྀ䜚⤌䜏䐠㻌 䠄䜶䞁䝆䞁Ὑί䠅㻌
¾ 䜶䞁䝆䞁䛿౑⏝䛩䜛䛻䛴䜜䚸䝁䞁䝥䝺䝑䝃䞊㻔ᅽ⦰ჾ㻕㒊ศ䛻ᚤᑠ䛺䜋䛣䜚䛜௜╔䛧䚸⇞↝ᐃᮇⓗ䛻ỈὙ㝖ཤ䛩䜛ຠ⋡䛜ᝏ䛟䛺䜛䚹䛣䜜䜢㜵䛠䛯䜑䚸䝁䞁䝥䝺䝑䝃䞊㒊ศ䛾䜋䛣䜚䜢ᐃ䛣䛸䛷䚸䜶䞁䝆䞁ᛶ⬟䜢ᅇ᚟䛥䛫䚸⇞㈝䜢ྥୖ䛥䛫䛶䛔䜛䚹㻌¾ ⯟✵ྛ♫䛷䛿䚸᤼Ỉᅇ཰㌴➼䚸㡰ḟỈὙ㝖ཤタഛ䜢ᣑ඘䛧䚸⇞㈝ຠ⋡䜢䛥䜙䛻㧗䜑䛶䛔䛟⪃䛘䛷䛒䜛䚹㻌䜶䞁䝆䞁Ὑί୰᤼Ỉᅇ཰㌴⯟✵ྛ♫䛾ᐇ⦼䛷䛿䚸ỈὙ㝖ཤ䛾㢖ᗘ䜢ᚑ᮶䛾㻠㻚㻡ಸ䛻䛧䛯䛸䛣䜝䚸㻌ᮾி㻙኱㜰㛫㻝㻜㻣㻜 ᚟ศ䛻┦ᙜ䛩䜛ᖺ㛫⣙㻠୓䝖䞁䛾㻯㻻㻞᤼ฟ๐ῶ䛜䛷䛝䛯䚹䠑㻌䠐䠊๐ῶ┠ᶆ䛾㐩ᡂ䛻ྥ䛡䛯ྲྀ䜚⤌䜏䐡㻌 䠄ᦚ㍕≀㍍㔞໬䠅㻌
¾ ⯟✵ᶵ䛾ᦚ㍕≀䛾㍍㔞໬䛿䚸ᾘ㈝⇞ᩱ䛾๐ῶ䠄䠙㻯㻻㻞᤼ฟ๐ῶ䠅ຠᯝ䛜኱䛝䛔䛯䜑䚸⯟✵ྛ♫䛿䚸ᵝ䚻䛺㍍㔞໬䛻✚ᴟⓗ䛻ྲྀ䜚⤌䜣䛷䛔䜛䚹㻌•䜰䝹䝭ྜ㔠〇䛾㈌≀䝁䞁䝔䝘䛛䜙᪂⣲ᮦ䛾䝁䞁䝔䝘䛻ኚ᭦䛩䜛䛣䛸䛷䚸䝁䞁䝔䝘㻝ྎ䛒䛯䜚⣙㻟㻜㼗㼓䛾㍍㔞໬䜢ᐇ᪋䚹䠄ᡂ⏣䠉䝃䞁䝣䝷䞁䝅䝇䝁⥺䛾∦㐨䛷᥮⟬䛩䜛䛸䚸⣙㻝㻚㻟䝖䞁䛾㻯㻻㻞᤼ฟ๐ῶ䠅㻌•ᚑ᮶䜘䜚㻞㻜䠂㍍㔞໬䛥䜜䛯☢ჾ㣗ჾ䜔䚸䠍ᮏ䛒䛯䜚㻞㼓㍍䛔䝇䝥䞊䞁䞉䝣䜷䞊䜽䚸䝽䜲䞁㻝ᮏ䛾㔜㔞䜢䠍㻛䠓䛻䛩䜛䝨䝑䝖䝪䝖䝹໬➼䚸䜾䝷䝮༢఩䛾㍍㔞໬䜢ᐇ᪋䚹㻌•ᚑ᮶‶䝍䞁䛷㐠⯟䛧䛶䛔䛯⯟✵ᶵ䛾㣧ᩱỈ䝍䞁䜽䜈䛾⤥Ỉ㔞䜢㊰⥺ẖ䛻㐺ṇ㔞䜢ヲ⣽䛻ぢ┤䛩➼䛾ᨵၿ䛻䜘䜚䚸኱ᆺ᪑ᐈᶵ䛷䛿᭱኱㻟㻜㻜㼗㼓䛾㍍㔞໬䜢ᐇ᪋䚹㻌㍍㔞䝁䞁䝔䝘⤥Ỉ䝍䞁䜽㍍㔞☢ჾ㣗ჾ䝨䝑䝖䝪䝖䝹䝽䜲䞁䠒㻌䠑䠊୺య㛫㐃ᦠ䛾ᙉ໬䞉ᅜ㝿㈉⊩䛾᥎㐍䐟
¾ 㣕⾜㊥㞳䛸㣕⾜᫬㛫䛾▷⦰䛿䚸฼⏝⪅䛾฼౽ᛶ䜢ྥୖ䛥䛫䜛䛸䛸䜒䛻ᾘ㈝⇞ᩱ䛾㍍ῶ䛻኱䛝䛺ຠᯝ䛜䛒䜛䚹
¾ 䛭䛾䛯䜑䚸⯟✵ྛ♫䛿ෆእ䛾⯟✵⟶ไᙜᒁ䛸㐃ᦠ䜢ᅗ䜚䚸ຠ⋡ⓗ䛺㐠⯟᪉ᘧ䜢㡰ḟྲྀ䜚ධ䜜䜛䛣䛸䛻䜘䜚䚸㻯㻻㻞᤼ฟ๐ῶ䛜᭱኱໬䛥䜜䜛㣕⾜䠄䠙䛂䜶䝁䝣䝷䜲䝖䛃䠅䛻ྲྀ䜚⤌䜣䛷䛔䜛䚹
¾ 䛣䜜䜙䛻䜘䜚䚸᪑ᐈ䛾⛣ື䛻క䛖㻯㻻㻞᤼ฟ㔞䛾ᴟᑠ໬䜢ᅗ䛳䛶䛔䜛䚹䜎䛯䚸᪑ᐈ䛻䜹䞊䝪䞁䜸䝣䝉䝑䝖䝥䝻䜾䝷䝮䜢ᥦ౪䛩䜛䛣䛸䛻䜘䜚䚸㻯㻻㻞๐ῶ䞉྾཰㔞䛾ቑຍ䛻ᐤ୚䛧䛶䛔䜛䚹㻌䐟㣕⾜㊥㞳䛾▷⦰໬䠄㧗⢭ᗘ⯟ἲ䛾ᑟධ䠅㻌㻌㻌㻌 ᚑ᮶䛾⯟✵㊰䛿䚸ᆅୖ䛾↓⥺᪋タ䜢⤖䜣䛰⤒㊰䛻䜘䛳䛶㻌㻌 タᐃ䛥䜜䛶䛔䛯䛜䚸ᗈᇦ⯟ἲ䠄㻾㻺㻭㼂䠅䛸䛔䛖㧗⢭ᗘ⯟ἲ䛜㻌㻌 ᑟධ䛥䜜䚸᭱▷㊥㞳䛷⤖䜣䛰⤒㊰䛷䛾㐠⯟䛜ྍ⬟䛻䛺䛳䛯䚹㻌䐠ຠᯝⓗ䛺᪂╔㝣᪉ᘧ䛾ᑟධ㻌
Above Airport Elevation (feet)㻌㻌 ᚑ᮶᪉ᘧ䛷䛿䚸䜶䞁䝆䞁᥎ຊ䜢ቑῶ䛥䛫䛺䛜䜙㝆ୗ㻌㻌 䛩䜛䛣䛸䛷⇞ᩱ䜢ᾉ㈝䛩䜛䛾䛻ᑐ䛧䚸᪂᪉ᘧ䛿䚸ᕠ⯟㻌㻌 㧗ᗘ䛛䜙䜶䞁䝆䞁᥎ຊ䜢⤠䜚䛺䛜䜙䜾䝷䜲䝎䞊䛾䜘䛖㻌㻌 䛻㐃⥆ⓗ䛻㝆ୗ䛧䚸╔㝣䛩䜛䚹㻌㻌㻯㻻㻞᤼ฟ㔞䛷㻌㻌 䛒䜛⯟✵఍♫䛾㻞㻜㻝㻝ᖺᗘᐇ⦼䛷䛿㻯㻌㻌ᖺ㛫䠏䠑䠌䝖䞁䛾๐ῶຠᯝ䛜䛒䛳䛯䚹

40000
35000
30000
25000

᪂᪉ᘧ

20000
15000
10000

ᚑ᮶᪉ᘧ

5000
0

100000200000300000400000500000600000

Cumulative Flight Dinstance (feet)

700000䠓㻌䠑䠊୺య㛫㐃ᦠ䛾ᙉ໬䞉ᅜ㝿㈉⊩䛾᥎㐍䐠䐡Ẽ㇟➼䜢⪃៖䛧䛯䝹䞊䝖᪉ᘧ䛾᭱㐺໬㻌㻌 㼁㻼㻾㻌㻔㼁㼟㼑㼞㻌㻼㼞㼑㼒㼑㼞㼞㼑㼐㻌㻾㼛㼡㼠㼑㻕䛸䛔䛖᪉ᘧ䛻䜘䜚䚸౽ẖ䛻ᶵ✀㻌㻌 䜔᭱᪂䛾Ẽ㇟᮲௳䜢⪃៖䛧䚸Ᏻ඲䛷ຠ⋡䛾䜘䛔㣕⾜⤒㊰㻌㻌 䜢⯟✵఍♫䛜⮬⏤䛻㑅ᢥ䛷䛝䜛䛣䛸䛻䜘䜚㣕⾜᫬㛫䛾▷⦰㻌㻌 䛜ྍ⬟䛻䛺䛳䛯䚹㻌㻌㻌 䛒䜛⯟✵఍♫䛷䛿䚸᪥ᮏ䠉䝩䝜䝹䝹㛫䠄ᖺ㛫㻠㻘㻠㻜㻜౽䠅䛷㻌㻌 ᖺ㛫㻠㻘㻣㻜㻜䝖䞁䛾㻯㻻㻞䛾๐ῶຠᯝ䛜䛒䛳䛯䚹㻌䐢ᆶ┤᪉ྥ䛷䛾㛫㝸▷⦰䛻䜘䜛㧗ᗘ䛾᭱㐺໬㻌㻌㻌 㻾㼂㻿㻹㻌䠄㼞㼑㼐㼡㼏㼑㼐㻌㼢㼑㼞㼠㼕㼏㼍㼘㻌㼟㼑㼜㼍㼞㼍㼠㼕㼛㼚㻌㼙㼕㼚㼕㼙㼡㼙䠅䛸䛔䛖᪉ᘧ䛻䜘䜚䚸㻌㻌 㧗䚻ᗘ䛷䛾ᆶ┤᪉ྥ䛾⟶ไ㛫㝸䜢⦰䜑䜛䛣䛸䛻䜘䜚஺㏻㔞䜢㻌⇞ᩱ⠇⣙䛻䛴䛺䛜䜛䚹㻌㻌 ቑຍ䛥䛫䚸᭱㐺䛺㧗ᗘ䛷䛾㣕⾜䛜ྍ⬟䛻䛺䜚⇞㻌 䛣䛾᪉ᘧ䛿⌧ᅾ䚸඲ୡ⏺つᶍ䛷ᐇ᪋䛥䜜䛶䛔䜛䚹㻌䐣䜰䝆䜰䞉ኴᖹὒᆅᇦ䛷䛾⎔ቃᑐ⟇㐃ᦠ㻌㻌㻌 䜰䝆䜰䞉ኴᖹὒᆅᇦ䛾⟶ไᶵ㛵䛸⯟✵఍♫䛻䜘䜚䚸ྠᆅᇦ䛾⎔ቃಖ඲䛾䛯䜑䚸㻌 㻌㻌 ⯟✵ᶵ䛛䜙䛾᤼ฟ䜺䝇䜢ᢚ䛘䜛ᅜ㝿ⓗ䛺ྲྀ䜚⤌䜏䛸䛧䛶䚸㻭㻿㻼㻵㻾㻱䠄㻭㼟㼕㼍㻌㼍㼚㼐㻌㻌㻌 㻼㼍㼏㼕㼒㼕㼏㻌㻵㼚㼕㼠㼕㼍㼠㼕㼢㼑㻌㼠㼛㻌㻾㼑㼐㼡㼏㼑㻌㻱㼙㼕㼟㼟㼕㼛㼚㼟䠅䛜タ❧䛥䜜䛯䚹㻌㻌㻌㻌 㻭㻿㻼㻵㻾㻱䛻䛶䚸⌧≧⪃䛘ᚓ䜛඲䛶䛾⎔ቃ㈇Ⲵ㍍ῶ⟇䜢┒䜚㎸䜣䛰㻌㻌 䝕䝰䞁䝇䝖䝺䞊䝅䝵䞁䝣䝷䜲䝖䠄䛂✲ᴟ䛾䜶䝁䝣䝷䜲䝖䛃䠅䜢ᮏ㑥⯟✵఍♫䛜ᐇ᪋䚹㻌㻌 㻮㻣㻠㻣㻙㻠㻜㻜䛻䜘䜛䝩䝜䝹䝹䠉㛵すᅜ㝿✵ 㛫䛾㐠⯟䛷䚸㻯㻻㻞᤼ฟ䜢⣙㻝㻡䝖䞁㻌㻌 䠄㻡㻑௨ୖ䠅䛾๐ῶ䜢ᐇ⌧䛧䛯䚹䠔㻌䠑䠊୺య㛫㐃ᦠ䛾ᙉ໬䞉ᅜ㝿㈉⊩䛾᥎㐍䐡䐤䜹䞊䝪䞁䜸䝣䝉䝑䝖䝥䝻䜾䝷䝮䛾ᥦ౪㻌⯟✵ᶵ䛻ᦚ஌䛩䜛䛚ᐈᵝ䛜䚸ฟⓎ✵ 䛛䜙฿╔✵ 䜎䛷䛾⛣ື䛻క䛔᤼ฟ䛥䜜䜛㻝ே䛒䛯䜚䛾㻯㻻䠎㔞䛾ᩘ್䜢ᥦ♧䛧䚸┦ᙜ䛩䜛᤼ฟ䜽䝺䝆䝑䝖䛾㔠㢠ศ䜢䛚ᐈᵝ䛾௵ព䠄䝪䝷䞁䝔䜱䜰䠅ཧຍ䛻䜘䜚䚸䜽䝺䝆䝑䝖Ỵ῭䞉䝬䜲䝺䞊䝆ᐤ௜➼䛻䜘䜚㻌䜸䝣䝉䝑䝖䛧䛶䛔䛯䛰䛟䝇䜻䞊䝮䜢⯟✵ྛ♫䛷ᥦ౪䛧䛶䛔䜛䚹㻌㻌ᮏ㑥⯟✵ྛ♫䛷฼⏝䛧䛶䛔䜛䜽䝺䝆䝑䝖䛿௨ୗ䛾䛸䛚䜚䚹㻌䠄䠦䠝䠨䠅ி㒔䜽䝺䝆䝑䝖䜢฼⏝䚹ไᗘ㛤ጞ䛾㻞㻜㻜㻥ᖺ㻞᭶䛛䜙㻞㻜㻝㻞ᖺᗘᮎ䜎䛷䛾⣼ィ㻯㻻䠎䜸䝣䝉䝑䝖㔞䛿䚸ᅜෆ䞉ᅜ㝿⥺ྜィ䛷㻌 㻌 㻌 㻌㻌 㻌 㻌 㻌 㻌 ⣙㻞㻜㻜䝖䞁䚹㻌䠄㻭㻺㻭䠅㻶䠉䠲䠡䠮䠄䈜䠅䜢฼⏝䛩䜛䛯䜑䚸ᅜෆ⥺䛾䜏䜢ᑐ㇟䚹ไᗘ㛤ጞ䛾㻞㻜㻜㻥ᖺᗘୗᮇ䛛䜙㻞㻜㻝㻞ᖺᗘᮎ䜎䛷䛾⣼ィ㻯㻻䠎㻌㻌 㻌 㻌 㻌 㻌 㻌 䜸䝣䝉䝑䝖㔞䛿⣙㻢㻜䝖䞁䚹᪥ᮏ䛾᳃ᯘಖ඲άື䛻ᑐ䛩䜛ᢞ㈨䛻ά⏝䛥䜜䛶䛔䜛䚹㻌㻌 㻌 㻌 㻌 㻌 䠄䈜䠅⎔ቃ┬䛜䚸ᅜෆ䝥䝻䝆䜵䜽䝖䛻䜘䜛㻯㻻䠎๐ῶ䞉྾཰㔞䜢ㄆド䚸Ⓨ⾜䛩䜛䜽䝺䝆䝑䝖㻶㻭㻸㻌㻭㻺㻭㻌(More Trees)䠕㻌㻌䠒䠊㠉᪂ⓗᢏ⾡䛾㛤Ⓨ㻌 䠄䝞䜲䜸䝆䜵䝑䝖⇞ᩱ䠅㻌¾ ⌧᫬Ⅼ䛷௦᭰⇞ᩱ䛾↓䛔⯟✵⇞ᩱ䛻䛴䛔䛶䛿䚸㻯㻻㻞᤼ฟ๐ῶ䜔ᣢ⥆ྍ⬟ᛶ䛾ほⅬ䛛䜙䚸䝞䜲䜸䝆䜵䝑䝖⇞ᩱ䛾㛤Ⓨ䛜㐍䜑䜙䜜䛶䛔䜛䚹㻌¾ ᮏ㑥⯟✵ྛ♫䛻䛚䛔䛶䛿䚸䛂䜹䝯䝸䝘䛃䜢୺ཎᩱ䛸䛧䛯䝞䜲䜸⇞ᩱ䜔䚸䛂౑⏝῭䜏㣗⏝Ἔ䛃䛻䜘䜛䝞䜲䜸⇞ᩱ䛻䜘䜛䝔䝇䝖䝣䝷䜲䝖䜔᪂㐀ᶵᘬ䛝ྲྀ䜚䝣䝷䜲䝖䜢ᐇ᪋䛧䚸᪩ᮇ䛻ᐇ⏝໬䛜ಁ㐍䛥䜜䜛䜘䛖✚ᴟⓗ䛺ྲྀ䜚⤌䜏䜢⾜䛳䛶䛔䜛䚹㻌㻝㻜㻌୺ཎᩱ䛾䜹䝯䝸䝘㻌䠓.㻌 ㅖእᅜẚ㍑䛻䛴䛔䛶㻌 㻌 㻌 㻌 ⯟✵ᶵ䛾⇞㈝ຠ⋡䛻ಀ䜛㻵㻭㼀㻭┠ᶆ䛸ᮏ㑥⯟✵ᴗ⏺┠ᶆẚ㍑䠄ᮏ㑥⯟✵ᴗ⏺㻞㻜㻜㻡ᖺ䠙㻝㻜㻜䛸䛧䛯ሙྜ䠅㻌
105100ㅖእᅜᖹᆒ䠄ᅜ㝿⥺䠅95ᮏ㑥⯟✵ᴗ⏺䠄ᅜ㝿⥺䠅

90
85
80
75
70
65
2005

20062007200820092010

2011201220132014201520162017201820192020

䈜㻝䠖㻌ㅖእᅜᖹᆒ䛿䚸㻞㻜㻜㻡ᖺ䛾䜏ᐇ⦼್䚸ᮏ㑥⯟✵ᴗ⏺䛿㻞㻜㻝㻝ᖺ䜎䛷䛜ᐇ⦼್䛷䛒䜚䚸䛭䜜䛮䜜ᣦᩘ໬䛧䛯䜒䛾䚹㻌㻌䛆ฟ඾䛇㻌㻵㻯㻭㻻㈨ᩱ㻔㻞㻜㻜㻤ᖺ䠅䛸༠఍䝕䞊䝍䛻ᇶ䛵䛝༠఍సᡂ㻌䛆┠ᶆタᐃ䛾ጇᙜᛶ䛇㻌䕿ୖ⾲䛿䚸⯟✵ᶵ䛾⇞㈝ຠ⋡䛻ಀ䜛ㅖእᅜᖹᆒ䠄㻵㻯㻭㻻㈨ᩱ㻞㻜㻜㻡ᖺᐇ⦼䠅䜢䝧䞊䝇䛻ᅜ㝿⯟✵㐠㏦༠఍䠄㻵㻭㼀㻭䠅䛜ᥖ䛢䜛䜾䝻䞊㻌 㻌 㻌㻌 㻌䝞䝹┠ᶆ䛻ᇶ䛵䛝ᖺ㻝㻚㻡㻑ᨵၿ䛧䛯ሙྜ䛾㻞㻜㻞㻜ᖺ䛾ᩘ್䛸ᮏ㑥⯟✵ᴗ⏺䛾㻞㻜㻞㻜ᖺ๐ῶ┠ᶆ್䛻䛴䛔䛶䚸㻞㻜㻜㻡ᖺ䛾ᮏ㑥⯟✵ᴗ㻌㻌 㻌⏺䛾ᩘ್䜢㻝㻜㻜䛸䛧䛯ሙྜ䛾ẚ㍑䜢⾜䛳䛯䜒䛾䚹㻌㻌 㻌㻌㻨ഛ⪃㻪㻌㻌 㻌 ᮏ㑥⯟✵ᴗ⏺䛷タᐃ䛧䛶䛔䜛┠ᶆ䛿䚸ᅜෆ⥺䞉ᅜ㝿⥺䜢ᑐ㇟䛸䛧䛶䛔䜛䛜䚸ୖ⾲䛷䛿ẚ㍑ୖ䚸౽ᐅⓗ䛻ᅜ㝿⥺䛾䜏䜢ᑐ㇟䛸䛧䛯ᩘ್䛷䛒䜛䚹䛭䛾䛯䜑䚸㻌㻌 㻌 ᅜෆ䞉ᅜ㝿⥺䜢ᑐ㇟䛸䛧䛯పⅣ⣲♫఍ᐇ⾜ィ⏬䛾┠ᶆ್䛸䛿୍⮴䛧䛺䛔䛜䚸ᅜෆ䞉ᅜ㝿⥺䜢ᑐ㇟䛸䛧䛯ሙྜ䛻䛴䛔䛶䜒ୖ⾲䛾ഴྥ䛿ᴫ䛽ྠᵝ䛷䛒䜛䚹㻌㻌䖃ᮏ㑥⯟✵ᴗ⏺䛾పⅣ⣲♫఍ᐇ⾜ィ⏬䛾ᇶ‽ᖺ䛿㻞㻜㻜㻡ᖺ䛷䛒䜛䛜䚸ᚑ๓䜘䜚⎔ቃ⮬୺⾜ືィ⏬䛻ཧ⏬䛩䜛䛺䛹✚ᴟⓗ䛻⇞㈝㻌㻌 㻌ຠ⋡䛾ྥୖ䛻ດ䜑䛶䛝䛯䚹䛭䛾䛯䜑䚸ㅖእᅜ䛻ẚ䜉๐ῶవᆅ䛿ᑡ䛺䛔≧ἣ䛷䛒䜛䛜䚸㻞㻜㻞㻜ᖺ䛻䛚䛔䛶ㅖእᅜᖹᆒ䜢ୖᅇ䜛⇞㻌 㻌 㻌
㻌㻌 ㈝ຠ⋡䜢㐩ᡂ䛩䜉䛟┠ᶆタᐃ䜢⾜䛳䛶䛔䜛䚹㻌䛆┠ᶆ㐩ᡂ䛾☜ᐇᛶ䜢ᢸಖ䛩䜛ᡭẁ䛇㻌䖃ᮏ㑥⯟✵ᴗ⏺䛸䛧䛶䛿䚸䛂పⅣ⣲♫఍ᐇ⾜ィ⏬䛃䛻ᥖ䛢䛯๐ῶ┠ᶆ䛾☜ᐇ䛺㐩ᡂ䛾䛯䜑䛻䚸⇞㈝ຠ⋡䛾䜘䛔᭱ඛ➃䛾⯟✵ᶵ䛾㻌㻌 㻌᭱኱㝈䛾ᑟධ䚸ຠ⋡ⓗ䛺㐠⯟᪉ᘧ䛾✚ᴟⓗᑟධ䛻䜘䜛䜶䝁䝣䝷䜲䝖䠄䠙㻯㻻㻞᤼ฟ๐ῶ䛜᭱኱໬䛥䜜䜛㣕⾜䠅䛾᥎㐍䛚䜘䜃䝞䜲䜸㻌 㻌㻌 㻌䝆䜵䝑䝖⇞ᩱ䛾᪩ᮇᐇ⏝໬䛻ྥ䛡䛯ྲྀ䜚⤌䜏䛺䛹䜢⾜䛖䚹䛣䜜䜙䜢㏻䛨䛶䚸పⅣ⣲♫఍䛾ᐇ⌧䛻ᐤ୚䛧䛶䛔䛟⪃䛘䛷䛒䜛䚹㻌㻝㻝㻌