This year will be Britain's warmest since records began, say scientists

Temperatures in central England have been recorded since 1659, the world's longest climate record, and they indicate the trend towards warming weather across Britain as a whole.

Experts are convinced that the warming can only be explained by rising greenhouse gases from human activity and rule out the impact of natural variations, such as the sun's intensity. "Our climate models show we should be getting warmer and drier weather in the summer, and warmer and wetter in the winter, and that's exactly what we're seeing," said Phil Jones, director of the climatic research unit at the University of East Anglia. "I cannot see how else this can be explained."

Soaring summer temperatures and an exceptionally warm autumn were the main forces driving annual temperatures to record levels, with July being the warmest month ever recorded at 19.7C and September an exceptional 16.8C. The summer heatwave was caused by a high pressure weather system loitering over the Alps from July to August. Highs are associated with air currents that spin clockwise, so on the western side Britain was warmed by air sucked up from north Africa. The high brought chilly northerlies down to east European countries.

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http://environment.guardian.co.uk/climatechange/story/0,,1971637,00.html