The challenge now, and this will be even more difficult, will be to turn the Copenhagen Accord into a legally binding treaty. Such a treaty will be difficult to negotiate and I’m sure Inhofe will do his best to block it (and he will have help.)
Inhofe is one of those who is keeping the LOTS treaty from being accepted by the US. Any international agreement which has the US working as part of (and not dominating over) an international organization has now become anathema to the Inhofe crowd.