Hot Tractor Stats
"It's a sign that we've got man-made global warming," said Dr Vicky Pope, head of climate science advice at the Met Office.
The last decade was the hottest on record, and Dr Pope warns it will turn out to have been even hotter by about 0.03C when corrections are made to data taken from buoys at sea.
The buoys take temperature measurements a metre below the surface, where it is slightly cooler than on the surface itself. Measurements were previously taken mainly by ships.
"A lot of the heat could be distributed to the deep oceans and we don't know what's going on there”
Climate sceptics say that until now, warming has plateaued over the last decade. The Met Office agrees that the rate of warming has slowed - but it maintains that is due to natural variability, not because man-made warming has stopped.
They think factors in the slower warming may have been - a natural downturn in solar radiation; a small reduction in water vapour in the stratosphere; a possible increase in aerosol emissions from Asia; and the fact that strong warming in the Arctic is poorly represented in the way data is collected.
Dr Pope says the slowdown in temperature rise is consistent with projections from climate models. She also says she expects warming to increase in the next few years.
Once we have finished correcting the data our forecasts will be correct especially in the Arctic where we haven't got any data from, but I have got a red crayon to fill the map in....