What's even more worrying is that almost all "old" ice is gone. Extent only measures ocean area with at least 15% ice. https://svs.gsfc.nasa.gov/4750 https://s

What's even more worrying is that almost all "old" ice is gone. Extent only measures ocean area with at least 15% ice. https://svs.gsfc.nasa.gov/4750 https://svs.gsfc.nasa.gov/4750 Scary times ahead!