AdvertisementStudy Finds Climate Change To Open Arctic Sea Routes By 2050March 05, 2013Scott NeumanfacebookEmailAn iceberg in or just outside the Ilulissat fjord, which likely calved from Jakobshavn Isbrae, the fastest glacier in western Greenland, in May 2012. Polar ice sheets are now melting three times faster than in the 1990s. (AP)