She writes: "Having to rein in extraordinary claims that the latest extreme [event] is all due to climate change is at best hugely frustrating and at worse enormously distracting. Overplaying natural variations in the weather as climate change is just as much a distortion of science as underplaying them to claim that climate change has stopped or is not happening."
She adds: "Both undermine the basic facts that the implications of climate change are profound and will be severe if greenhouse gas emissions are not cut drastically."
Dr Peter Stott, a climate researcher at the Met Office, said a common misrepresentation was to take a few years data and extrapolate to what would happen if it continues. "You just can't do that. You have to look at the long-term trend and then at the natural variability on top." Dramatic predictions of accelerating temperature rise and sea ice decline, based on a few readings, could backfire when natural variability swings the other way and the trends seem to reverse, he says. "It just confuses people."