Arctic sea ice may be declining faster than expected: study
FILE PHOTO: A Russian border mark is pictured at the Nagurskoye military base in Alexandra Land on the remote Arctic islands of Franz Josef Land, Russia March 29, 2017. Picture taken March 29, 2017.
Arctic sea ice may be thinning faster than predicted because salty snow on the surface of the ice skews the accuracy of satellite measurements, a new study from the University of Calgary said on Tuesday.
The report from the Canadian university’s Cryosphere Climate Research Group published in the academic journal Geophysical Research Letters found satellite estimates for the thickness of seasonal sea ice have been overestimated by up to 25 percent.
That means the Arctic Ocean could be ice-free much sooner than some scientific predictions, which forecast sea ice will first disappear completely during summer months between 2040 and 2050, according to lead author Vishnu Nandan.