A team of researchers from New York University (NYU) recorded a four-mile iceberg, big enough to stretch from lower Manhattan to Midtown in New York City, breaking away from a glacier in eastern Greenland on June 22.Such events are one of the main forces behind the global rise of sea-levels. David Holland, the research team leader at NYU’s Courant Institute of Mathematics, said that global sea-level rise is “both undeniable and consequential”.The team’s logistics coordinator, Denise Holland, said that understanding the phenomenon, known as calving, could help predict and plan for the effects of climate change.The video was recorded over a period of 30 minutes, but is condensed into one minute, 40 seconds. Credit: Denise Holland/NYU via Storyful