The remaining portion of the Antarctic ice shelf called ” Larsen C” is showing signs of disintegration and may be no more by the end of the decade. This is deeply concerning since ice shelves help hold glaciers in place. Without that support the pace of glacial movement out to the ocean increases and therefore increases the pace of sea level rise. This particular ice shelf supports three glaciers named Leppard, Flask and Starbuck (anyone recognize the Moby Dick connection?). In 2002 a portion of Larsen C collapsed, it looks like what remains of the 10,000 year old ice shelf will soon be gone. The ice shelf Larsen B collapsed in 2002 which led to the increased flow of supporting glaciers. But Larsen C is 10 times the size of Larsen B and the fourth biggest ice shelf in Antarctica. What this could mean for coastal areas around the world is unknown.
Scientists from NASA’s Jet Propulsion Laboratory recently made this discovery through the use of data from NASA’s Operation IceBridge (a six-year airborne survey of the Earth’s polar ice, the largest of it’s kind).
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About the Illustration: Micron pen on vellum paper.