GLOBAL WARMING ALERT: Greenland ice sheet melting at ‘UNPRECEDENTED’ rate - ‘TRUMP EFFECT’

Olive Hawkins
December 7, 2018

Across the ice sheet, melting was more rapid in 2012 than any other year and the most recent decade included in the ice core-analysis, 2004-2013, experienced "a more sustained and greater magnitude of melt than any other 10-year period" in the 350-year record, the scientists wrote.

The loss of ice from Greenland is one of the key drivers of rising global sea levels.

"It's not just increasing, it's accelerating", he explained.

Researchers at the Woods Hole Oceanographic Institution in Falmouth, Massachusetts found that glaciers on the world's second-largest island are melting more than 30 percent faster than during the mid-1900s.

They added that Greenland's dramatic melting was directly linked to the greenhouse gases belched into Earth's atmosphere since the beginning of the industrial revolution.

The report reveals that the ice in Greenland is melting at a rate much faster than anything seen over the last couple of centuries and maybe even the last millennium, reports DR Nyheder.

'The melting and sea-level rise we've observed will be dwarfed by what may be expected in the future'. At lower heights melt water directly runs off the ice sheet, but at escalated heights some percolates down porous compressed snow vociferated firn prior to refreezing to constitute layer not as same as the growth layers discovered in trees.

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While the researchers were able to demonstrate their ice core melt record was generally applicable across of Greenland by correlating recent history with satellite records and model predictions, the southeastern margin is one area where an independent core would help verify trends.

They found that the surface of Greenland's ice sheet melts on summer days.

"The melting of the Greenland ice sheet is off the charts today", declared Dr. Luke Trusel, a professor of geology at Rowan University and lead author of the report. This prevents it from escaping the ice sheet in the form of runoff.

"Once the ice sheets reach these tipping points, it's thought that they'll go into a state of irreversible retreat, so they'll be responding to what we do now for centuries and milliennia into the future", Trusel said. Dark bands running horizontally across the cores, like ticks on a ruler, enabled the scientists to visually chronicle the strength of melting at the surface from year to year. Thicker bands signify years of higher melting, while thinner bands indicate years of less intense melting.

"From a historical perspective, today's melt rates are off the charts and this study provides the evidence to prove it", said Sarah Das, a glaciologist at Woods Hole Oceanographic Institution in MA and co-author of the study.

"We found a fifty percent increase in total ice sheet meltwater runoff versus the start of the industrial era and a thirty percent increase since the 20th century alone", Das said.

The research team said ice core records provide "critical" historical context because satellite measurements - which scientists rely on today to understand melting rates in response to changing climate - have only been around since the late 1970s.

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