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26 July 2019
Vol 365, Issue 6451

About The Cover

Cover image expansion

COVER Submarine melting of ice at the leading edge of glaciers that discharge into the ocean is happening faster than expected. This section of an iceberg calved from LeConte Glacier in southeast Alaska illustrates one of the consequences of this process, which helps drive mass loss, destabilizes ice sheets, and leads to faster rates of sea level rise. See page 369.
Photo: Mark Galer