Reply #1: The Princeton Wedge Stabilization Game.

[NYC_SKP]

The Princeton Wedge Stabilization Game is pretty fun.
http://www.princeton.edu/wedges/
We played this at an IPCC conference in SF in 2007.

My criticism of it was that, as it was presented, the goal was to identify 7 or 8 wedges that would fill the "stabilization triangle".
Filling this triangle would flatten the graph of GHG emissions.
I argued that we need to do more, we need to flatten (reduce to zero the rate of annual growth of emissions) AND go further to begin lowering emissions year by year, which would take many more wedges.
I hope the Princeton Game becomes clearer in what we need to do.

The Climate Progress wedges are of a different "denomination", I believe, with different values than Princeton.

Here's a chart:


Flattening at 11 GtC/Year is better than accelerating output, but it's still pumping 11 GtC/Year into the atmosphere.

So how long can that go on?