Ruth Dixon's excellent book review of "Why are we waiting?" by Nicholas Stern is well worth reading. You can download a pdf version here.
As the cartoon notes, the question 'Why are we waiting?' has already been answered by David Cameron. But today we read that Naomi Klein disagrees with Stern - Naomi thinks the only solution is a 'public uprising' to end capitalism.
Something they might like to sort out before Paris, eh.