the arctic ocean s older thicker blanket of sea ice is nearly gone what remains is younger thinner more variab
The Arctic Ocean's older, thicker blanket of sea ice is nearly gone. What remains is younger, thinner, more variable ice, according to research. The new ice grows in the winter and melts in the summer, but doesn't last from year to year. More:
acompetition for the north pole has heated up as canada became the third country to claimbased on extensive sc
A competition for the North Pole has heated up as Canada became the third country to claim—based on extensive scientific data—that it should have sovereignty over a large swath of the Arctic Ocean, including the pole.