clipped from: www.guardian.co.uk   

It seems the one thing climate change sceptics are certain of is uncertainty, in particular how uncertainty in the predictions of climate models fatally undermines their legitimacy.


So the recent revelation of the UK government's projections of global warming through to 2080 was met, predictably, with some cynicism by the deniers.

the response of climate sceptics was to say that the error bars in the projections made them worthless

Never mind that the level of uncertainty about mean temperature increase, sea level rise and seasonal rainfall was dealt with in painstaking and meticulous detail in the report.

But uncertainty is not an enemy of science that must be conquered – it is the stimulus that drives science forward

The good news is that scientists are particularly adept at acknowledging, identifying and modelling it

There is one crucial uncertainty, however, that cannot be captured in any climate model: the extent to which action is taken to cut the emissions of greenhouse gases