Efforts to sell climate policy based on ever more scary scenarios of apocalypse cannot be sustained and are likely to work in exactly the opposite manner than desired. A good example of why this is so can be found in a recent paper that suggests that the rate of sea level rise from 2003-2008 (2.5 mm/year) is 20% lower than that presented by the IPCC for 1993-2003 (3.1 mm/year). Whether this is “consistent with” longer-term predictions is different that whether it is “consistent with” a political strategy based on scaring people. It seems pretty obvious that systems that exhibit a large amount of variability or are simply poorly understood on relatively short time scales are not very useful props in efforts to show the world moving inexorably towards doom.