Why are the states in Copenhagen

Kevin Rudd has defended the size of the delegation Australia is taking to the Copenhagen climate summit. The Australian contingent numbers 114, more than the 71 being sent by the British government, The Australian said on Friday

The Australian delegation was larger than the British contingent because the UK did not have state governments, he said. “We extend an invitation to (officials at the state level) and they come,” Mr Rudd said.

Why? Are the state governments going to sign up their respective states to a treaty or are they just there as part of the Greens/Church of the Latter Day Alarmists gabfest and revival meeting. Surely the latter.