Arctic and Antarctic sea ice peaked at record lows for a third year running. It’s the smallest since record keeping began in 1979, scientists at NASA and the National Snow and Ice Data Center announced. Over the course of the seasons, ice at the poles expands and contracts, reaching a peak during the winter and a low during the summer. These peaks and troughs occur at mirror opposite points in the year, because of the seasons being reversed on either side of the equator. The winter ice cover in the Arctic Ocean peaked on March 7, reaching a total area … Continue reading Record lows in ice recorded at both ends of the planet