The objective of the 2015 conference is to achieve, for the first time in over 20 years of UN negotiations, a binding and universal agreement on climate, from all the nations of the world.
I hope this objective is achieved. However, this is a long game that is being played, and it would be a mistake to pin too much on one individual event or conference.
What's more important is that events like this are very public waypoints on the journey to a truly sustainable future. I hope everyone involved with it is able to use it to nudge others - perhaps the equivalent of 'floating voters' - to bring their influence to bear to push in the right general direction rather than to let the existing paradigm push in the wrong direction, or to do nothing, which is tantamount to the same thing because of inertia.
I'll be interested to see if any publications or other materials relating to COP21 include principles of, or elements from, the World Balance Sheet approach which I advocate be developed.