L'échec du Protocole de Tokyo est incontestable. Et cette fois, il sera difficile de revenir en arrière:

The presentation of Kyoto as the only course of action has raised the political price of admitting its defects, not least because it would mean admitting that the non-signatories may have been right in practice, whatever their motives. Its advocates invested emotional as well as political capital in the process, making it difficult to contemplate the idea that it is fatally flawed. Its narrow focus on mitigating the emission of greenhouse gases (in which it has failed) has created a taboo on discussing other approaches, in particular, adaptation to climate change. Failure to adapt will cost the poor and vulnerable the most.
For the past fifteen years, it has given the concerned public an illusion of effective action, tranquillising political concern. This has been, perhaps, its most damaging legacy.