
This is the real reason why Obama went to Copenhagen. General Stanley McChrystal flew up there for the speech. Obama was there for less than 5 hours and gave an embarrassing speech for Chicago. If you recall up to 2 days before had we weren't even told Obama was going. McChrystal gave that speech on Afghanistan and suddenly they both end up in Denmark for an unscheduled trip.
http://www.washingtontimes.com/news/2009/oct/02/obama-meets-mcchrystal-copenhagen/