Satellite used to record sea ice data malfunctions

The satellite used to record sea ice data in the Arctic malfunctioned in April, and scientists are scrambling to calibrate a month of missing data.
The graph above shows Arctic sea ice extent as of February 3, 2016, along with daily ice extent data for four previous years. (Graphic courtesy of National Snow & Ice Data Center)In mid-March, the National Snow and Ice Data Center reported the lowest maximum sea ice extent in satellite history.“It was a record low in our satellite record, w