March 12, 2019

Ice Melt In Greenland

Listen Later

2 minutes

A new study published in the Proceedings of the National Academy of Sciences warns that Greenland’s ice Is melting much faster than previously thought. The ice loss rapidly accelerated around 2002-2003 and by 2012 the annual loss was nearly four times the rate in 2003.

Most of the new ice melt is in southwest Greenland, a part of the

island that wasn’t known to be losing ice that rapidly and is not where most of

the large glaciers are in Greenland. The

loss is coming from the land-fast ice sheet itself.

Data from NASA satellites and GPS stations scattered around

Greenland’s coast shows that between 2002 and 2016, Greenland lost

approximately 280 billion tons of ice per year.

That is enough melt to cover the entire states of Florida and New York

hip deep in meltwater, as well as drowning Washington, D.C. and one or two

other small states.

Global warming of just 1 degree Celsius is the main driver behind this

massive meltdown of ice. The temperature

rise coupled with a negative phase of the North Atlantic Oscillation causes

rapid surface melt of the ice sheet during summers. The Oscillation is a natural, irregular

change in atmospheric pressure that brings warm, sunny weather to the western

side of Greenland during its negative phase.

The Greenland ice sheet is 2 miles thick in some places and contains

enough ice to raise sea levels 23 feet if it all melted. The melting Greenland ice is already slowing

the Gulf Stream, which is wreaking havoc with European weather. If we don’t get a handle on global

temperature rise, things are only going to get worse.

**********

Web Links

Greenland’s ice is melting four times faster than thought—what it means

Photo, posted April 21, 2017, courtesy of Markus Trienke via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

...more

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Earth Wise

By Randy Simon

4.7

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March 12, 2019

Ice Melt In Greenland

Listen Later

2 minutes

A new study published in the Proceedings of the National Academy of Sciences warns that Greenland’s ice Is melting much faster than previously thought. The ice loss rapidly accelerated around 2002-2003 and by 2012 the annual loss was nearly four times the rate in 2003.

Most of the new ice melt is in southwest Greenland, a part of the

island that wasn’t known to be losing ice that rapidly and is not where most of

the large glaciers are in Greenland. The

loss is coming from the land-fast ice sheet itself.

Data from NASA satellites and GPS stations scattered around

Greenland’s coast shows that between 2002 and 2016, Greenland lost

approximately 280 billion tons of ice per year.

That is enough melt to cover the entire states of Florida and New York

hip deep in meltwater, as well as drowning Washington, D.C. and one or two

other small states.

Global warming of just 1 degree Celsius is the main driver behind this

massive meltdown of ice. The temperature

rise coupled with a negative phase of the North Atlantic Oscillation causes

rapid surface melt of the ice sheet during summers. The Oscillation is a natural, irregular

change in atmospheric pressure that brings warm, sunny weather to the western

side of Greenland during its negative phase.

The Greenland ice sheet is 2 miles thick in some places and contains

enough ice to raise sea levels 23 feet if it all melted. The melting Greenland ice is already slowing

the Gulf Stream, which is wreaking havoc with European weather. If we don’t get a handle on global

temperature rise, things are only going to get worse.

**********

Web Links

Greenland’s ice is melting four times faster than thought—what it means

Photo, posted April 21, 2017, courtesy of Markus Trienke via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

...more