Page 70 - BBC Focus Earth From Above - 2017 UK
P. 70

AN T A R C T I CA          Wilkins
                                      Ice Shelf
         Frozen planet



          This chilly scene shows part of the     ANTARCTICA
          Wilkins Ice Shelf in Antarctica. The pale
          blue circles in the centre of the image are
          melt pond scars, where meltwater once
          pooled on top of the ice then refroze. The
          icebergs and sea ice floating off the coast
          are evidence that the ice shelf is gradually
          breaking apart. Experts think the most
          recent breakup may not be directly due to
          global warming, but possibly caused by a
          previous event changing the shelf’s
          shape, leaving the edges vulnerable
          to the action of ocean waves.
          PHOTO: NASA/EARTH OBSERVATORY
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