India, Nov. 30 -- President Obama delivers a profoundly (but perhaps predictably) disappointing speech in Copenhagen

President Obama gave a long awaited speech to gathered delegates in Copenhagen moments ago... and said absolutely nothing new.

The only material difference between his comments and those made by Hillary Clinton yesterday was a highly unfortunate reference to countries' "common but differentiated responses", instead of "common but differentiated responsibilities ".

If this wasn't indeed a slip of the tongue (and where President Obama is concerned, this seems unlikely), it would be an attempt to wipe any reference to historical responsibility off the face of a future climate deal.

Indeed, Obama essentially threatened that t...