Satellite data released Tuesday by the National Snow and Ice Data Center shows that Arctic sea ice extent has reached a new record low for the month of April, falling below 13.2 million square kilometers for the first time since satellite monitoring began in 1979. The current extent is 1.4 million square kilometers below the 1981-2010 average.
Climate scientists at NSIDC attribute the decline to an unusually warm winter across the Arctic basin, where temperatures averaged 3.5 degrees Celsius above normal from January through March. The thinning ice is particularly evident in the Barents and Kara Seas, which remain largely ice-free despite typically being frozen at this time of year.
The record low raises concerns about the upcoming melt season, as thinner ice in April typically leads to accelerated summer melting. Researchers warn that if current trends continue, the Arctic could experience its first ice-free September within the next decade, with far-reaching consequences for global weather patterns.
