NewScientist: Nothing but blue skies" This rare satellite image of a completely cloudless Alaska triggered media debate this week on whether climate change and melting Arctic sea ice are to blame. The true picture looks more nuanced.
Release of the image (larger version) by NASA coincided with a heatwave that saw the mercury hit 36 °C in Talkeetna -- 160 kilometres north of Anchorage -- on 17 June, and record-breaking temperatures in at least three other towns. Yet just weeks ago, the state saw unseasonably...