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(CNN)Satellite images show that two important glaciers in the Antarctic are sustaining rapid damage at their most vulnerable points, leading to the breaking up of vital ice shelves with major consequences for global sea level rise.
We use satellite imagery to show how the shear margins of both @AntarcticPIG and @ThwaitesGlacier have weakened. Here you see a @NASA_Landsat 🛰️ time lapse of @AntarcticPIG showing how the shear margin is tearing apart [2/n] pic.twitter.com/u7vRfFxcOH
We hypothesize that this damage preconditions these ice shelves for further disintegration. First, because it already compromises the integrity of both ice shelves. [4/n] pic.twitter.com/HqaPjg8OHv
An example of this preconditioning can be seen in the unprecedented retreat of the @AntarcticPIG ice shelf front over the last years where the ice shelf lost 30% of its area. [5/n] pic.twitter.com/cCccu3QQTS
Glacier, Antarctica, Thwaites Glacier, Sea level rise, Pine Island Glacier, Climate change, Ice shelf, West Antarctic Ice Sheet
World news – US – Extensive damage at two huge Antarctic glaciers could have major consequences for sea level rise