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Nature Geoscience 1, 811–812 (1 December 2008) | doi:10.1038/ngeo370

Palaeoclimate: North Atlantic climate swings

Oliver Timm

For nearly a century, meteorologists have carefully watched the North Atlantic Oscillation, a wide-ranging pressure seesaw that controls winter climate over large parts of North America, Europe and North Africa. Larger contrasts in sea-level pressure than normal between the Azores High in the south and the Icelandic Low in the north (Fig.