On this September 13th, coinciding to be a “Friday 13th”, we wanted to scan the cryo-history for expeditions started, sunken ships that day , and mountain myths. And we did find that. But as autumn approaches in the Northern hemisphere, the spookiest story of all was this one: the unlucky timing of the Arctic sea ice in September. TGIF – but not for sea ice Although the median minimum Arctic sea ice extent is on September 14th , a few times in the last decades, the minimum extent occurr...
