Icebergs typically come in shades of white or blue????but did you know that some of these massive ice chunks are green?????Scientists have been baffled by emerald icebergs for more than a century… until now????University of Washington scientists think it’s due to iron oxides from Antarctica’s mainland????after they discovered large amounts of iron in East Antarctica’s Amery Ice Shelf????They believe that when glaciers move over bedrock, the grinding forms glacial flour????which flows into the ocean and gets trapped in blue marine ice, turning it green????They believe green icebergs transport iron to phytoplankton, vital for the tiny marine plants????The study was published in AGU’s Journal of Geophysical Research: Oceans??