'Everyone should be concerned': Antarctic sea ice reaches lowest levels ever recorded

With the continent holding enough ice to raise sea levels by many metres if it was to melt, polar scientists are scrambling for answersGet our morning and afternoon news emails, free app or daily news podcastFor 44 years, satellites have helped scientists track how much ice is floating on the ocean around Antarctica's 18,000km coastline.The continent's fringing waters witness a massive shift each year, with sea ice peaking at about 18m sq km each September before dropping to just above 2m sq km by February.Sign up for a weekly email featuring our best reads Continue reading...