Gordon Brown said the following
in the lead-up to the Copenhagen climate conference last year:
There are now fewer than 50 days to set the course of the next 50 years and more. If we do not reach a deal at this time, let us be in no doubt: once the damage from unchecked emissions growth is done, no retrospective global agreement in some future period can undo that choice. By then it will be irretrievably too late.
In advance of the Cancun climate conference in a few weeks, India's Jairam Ramesh says
We are running out of time, Cancun is the last chance. The credibility of the climate-change mechanism is at stake.
What I think he must mean is that Cancun is the last chance . . . until South Africa 2012, which will be the last chance until . . .