America has come back to the conference because of the upsurge of domestic public opinion, however, the following issue of conflict between America and other developed countries is pointed out: America, while objecting to the present framework, opposes to Japan, Russia, Australia and so on, which negotiate for the treaty revision, and also opposes to EU, which aims to promote the present framework and to reduce the emissions led by developed countries.
米国は国内世論の高まりなどを受けて協議に復帰したが、現在の枠組みに反発し条約改正を視野に交渉に臨む日本・米国・ロシア・オーストラリアなどと、既存の枠組みを進め先進国主導の削減を訴えるEUなどとの間の対立構造が形成されつつあると指摘されている。