https://phys.org/ en-us Latest news from University of Tromsø The Dark Zone of Greenland ice sheet is a large continuous region on the western flank of the ice sheet; it is some 400 kilometers wide stretching about 100 kilometres up from the margin of the ice. https://phys.org/news/2018-04-algae-impurities-darken-greenland-ice.html Earth Sciences Wed, 04 Apr 2018 11:44:58 EDT news442061081 How does the sound of a tiny Earth tremor differ from the sound of a huge passing whale? That is one of the things that scientists had to figure out while listening for the sound of methane release from the sea floor. https://phys.org/news/2018-03-micro-earthquakes-mega-whales-arctic.html Environment Mon, 19 Mar 2018 09:51:05 EDT news440671855 Natural seepage of methane offshore the Arctic archipelago Svalbard has been occurring periodically for at least 2,7 million years. Major events of methane emissions happened at least twice during this period, according to a new study. https://phys.org/news/2015-02-methane-seepage-arctic-seabed-millions.html Earth Sciences Fri, 06 Feb 2015 07:00:05 EST news342427322