Redirecting you to http://www.nature.com/news/180-000-forgotten-photos-reveal-the-future-of-greenland-s-ice-1.20335?WT.ec_id=NATURE-20160728&spMailingID=51926878&spUserID=MjU1NTc3Njc0NAS2&spJobID=963948046&spReportId=OTYzOTQ4MDQ2S0