Huge chunks of ice weighing several billion tons each were breaking off and sliding into the sea, causing minor earthquakes as they did so. (earthpolicy.org)
Scientists recognized that climate change is rapidly altering the landscape in Antarctica, particularly when it comes to glacier retreat and ice shelf collapse, so they made a pact for how they would approach research as huge chunks of ice broke off. (earther.com)
What Harding saw is called «calving,» when huge chunks of ice «calv,» or break off, a glacier. (dotearth.blogs.nytimes.com)