What message, and whose, from Copenhagen?

The Copenhagen Climate Change Conference in March concluded with a declaration saying that the most serious warnings on climate change were coming true, and calling for immediate “action”.  But, argues Mike Hulme in the BBC Green Room, it is not clear what action was being called for, nor precisely who was calling for it.

http://news.bbc.co.uk/1/hi/sci/tech/7946476.stm