University of Delaware Marine Scientist Andreas Muenchow witnessed first hand the extent of record Arctic ice loss. In his video, Muenchow shows the ice-free sea off Petermann Fjord and illustrative evidence of the U.S. National Snow and Ice Data Center’s (NSIDC) recent report.
“What we see in Nares Strait is some of the hardest and thickest ice leaving the Arctic where some of it is replaced by much thinner ice that has not been hardened by many sequential freeze/melt cycles,” Muenchow says. “The harder thicker ice is called ‘multi-year’ ice, distinct from first-year ice, and the slow disappearance of this multi-year ice from northern Canada and Greenland is one major factor causing the ice extent to become steadily smaller over the last 40 years or so. Most climate models predicted this scenario, but we are 30 to 40 years ahead of the predicted schedule with regard to the ice cover in the Arctic.”