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Letter

Nature Geoscience 2, 115–119 (1 February 2009) | doi:10.1038/ngeo414

Decline of fog, mist and haze in Europe over the past 30|[thinsp]|years

Robert Vautard , Pascal Yiou & Geert Jan van Oldenborgh

Surface solar radiation has undergone decadal variations since the middle of the twentieth century, producing global |[lsquo]|dimming|[rsquo]| and |[lsquo]|brightening|[rsquo]| effects. These variations presumably result from changes in aerosol burden and clouds, but the detailed processes involved have yet to be determined.