Jakobshavn Isbrae, a Greenland glacier, has started moving faster into ocean, making itself the fastest flowing glacier on the globe. When compared with speed of the glacier in 1990s, it has increased by four times during this summer season.

Ben Smith, researcher from the University of Washington's Polar Science Center, said that with increase in temperature at Arctic the calving of the glacier is retreating inland every year. During the summers of 2012 and 2013, the Jakobshavn Glacier has retreated inland over one kilometer with speed of about 150 feet per day.

Researchers are expecting that the calving of the glacier will retreat inland over 50 kilometers by the end of this century. The study has been published in the European Geosciences Union Journal, The Cryosphere.

The Jakobshavn Glacier alone increased sea-level by about one-millimeter between 2000 and 2010. Ian Joughin, researcher and coauthor of the paper, said that a small increase in sea-level accompanied with rise in temperature will soon contribute to beachfront property in Denver, Colorado.

The 'bellwether of climate change' is the glacier of Greenland that has caused highest increase in sea-level in the region than any other glacier in the Northern Hemisphere.

Another important point noticed by the research team was no change in the Greenland ice sheet, which was expected to collapse in the ocean with passage of time.

Many researchers believe that the Jakobshavn Glacier spawned the iceberg that sank the 'Titanic'.