The Arctic sea ice extent was a staggering 260,000 sq km below the previous record for June, set in 2010. And it was 1.36m sq km below the 1981-2010 long-term average, according to the National Snow and Ice Data Center. From mid-June onwards, ice cover disappeared at an average rate of 74,000 sq km a day, about 70% faster than the typical rate of ice loss, the NSIDC said. The overall Arctic sea ice cover during June averaged 10.60m sq km, the lowest in the satellite record for the month, according to the NSIDC.
— source theguardian.com