Pine Island Glacier's ice shelf is ripping apart, speeding up key Antarctic glacier thinning From 2017 to 2020, large icebergs at the ice shelf's edge broke away More at https://www.nsf.gov/discoveries/disc_summ.jsp?cntn_id=302983&WT.mc_id=USNSF_1 This is a Research News item. Read more at nsf.gov