The total amount of carbon dioxide emissions of Annex I Parties which have signed the treaty (developed countries, cooperative countries with a positive stance) in 1990 accounts for equal to or more than 55% of the total amount of that of all Annex I Parties.
締結した附属書I国（先進国、積極的に参加した諸国）の合計の二酸化炭素の1990年の排出量が、全附属書I国の合計の排出量の55%以上