The Antarctic Peninsula is one of the fastest-warming regions on Earth, with average temperatures that have risen about 3°C (5°F) over the last half century. The increasing size and poleward shift of the Larsen calving events over the last 20-plus years would seem consistent with the warming effect of human-produced greenhouse gases. In fact, as noted by John Abraham, a 1978 paper by researcher John Mercer predicted this very thing: “One of the warning signs that a dangerous warming trend is under way in Antarctica will be the breakup of ice shelves on both coasts of the Antarctic Peninsula, starting with the northernmost and extending gradually southward.”

Source: Delaware-Sized Iceberg Detaches from the Larsen C Shelf by Bob Henson | Category 6 | Weather Underground