ScienceDaily: The sudden thinning in 1997 of Jakobshavn Isbræ, one of Greenland’s largest glaciers, was caused by subsurface ocean warming, according to research published in the journal Nature Geoscience. The research team traces these oceanic shifts back to changes in the atmospheric circulation in the North Atlantic region. The study, whose lead author was David Holland, director of the Center for Atmosphere Ocean Science, part of New York University’s Courant Institute of Mathematical …