NASA Study: Mass Gains of Antarctic Ice Sheet Greater than Losses


antarctic-peninsula A new NASA study says that an increase in Antarctic snow accumulation that began 10,000 years ago is currently adding enough ice to the continent to outweigh the increased losses from its thinning glaciers.

The research challenges the conclusions of other studies, including the Intergovernmental Panel on Climate Change’s (IPCC) 2013 report, which says that Antarctica is overall losing land ice.

According to the new analysis of satellite data, the Antarctic ice sheet showed a net gain of 112 billion tons of ice a year from 1992 to 2001. That net gain slowed   to 82 billion tons of ice per year between 2003 and 2008.

“We’re essentially in agreement with other studies that show an increase in ice discharge in the Antarctic Peninsula and the Thwaites and Pine Island region of West Antarctica,” said Jay Zwally, a glaciologist with NASA Goddard Space Flight Center in Greenbelt, Maryland, and lead author of the study, which was published on Oct. 30 in the Journal of Glaciology. “Our main disagreement is for East Antarctica and the interior of West Antarctica – there, we see an ice gain that exceeds the losses in the other areas.”  Zwally added that his team “measured small height changes over large areas, as well as the large changes observed over smaller areas.”

http://www.nasa.gov/feature/goddard/nasa-study-mass-gains-of-antarctic-ice-sheet-greater-than-losses

Ozone hole over Antarctica expands to near-record levels, now four times size of Australia


6899744-3x2-340x227 The hole in the ozone layer above Antarctica has been carefully monitored for over 30 years.

According to atmospheric scientist Professor David Karoly from the University of Melbourne, its size fluctuates greatly when it emerges each spring.

“Each springtime over the last now nearly 35 years, there’s been a depletion of stratospheric ozone over Antarctica primarily due to two really important factors,” he said.

“It’s the increase in ozone-depleting chemicals in the atmosphere and a very special cold conditions that occur in winter and spring over Antarctica which provide a special, if you like, catalytic ozone destruction vessel that allows the ozone to be rapidly deployed by the higher concentrations of chlorofluorocarbons — ozone-depleting chemicals that have occurred in the stratosphere due to human activity.”

The UN’s weather and climate agency said this year’s seasonal ozone hole peaked on October 2, covering an area over Antarctica of 28.2 million square kilometres — close to four times the size of Australia or the size of Russia and Canada combined.

The CSIRO’s Paul Krummel said it was a big difference compared to last year, when the seasonal ozone hole was one of the smallest on record.

http://www.abc.net.au/news/2015-10-30/ozone-hole-over-antarctica-expands-to-near-record-levels/6898824#oo

OZONE HOLE OVER ANTARCTICA EXPANDS TO NEAR-RECORD LEVELS, NOW FOUR TIMES SIZE OF AUSTRALIA


ozone-layer Scientists from the UN said the increase was due to colder-than-usual temperatures, rather than any extra damage being done to the Earth’s protective layer.

But that could still mean extra UV radiation and the risk of more people getting sunburnt in Australia’s southern states this summer.

The hole in the ozone layer above Antarctica has been carefully monitored for over 30 years.

According to atmospheric scientist Professor David Karoly from the University of Melbourne, its size fluctuates greatly when it emerges each spring.

http://www.infowars.com/ozone-hole-over-antarctica-expands-to-near-record-levels-now-four-times-size-of-australia/

Ghostly Particles from Outer Space Detected in Antarctica


Buried deep in the Antarctic ice, an observatory has spotted ghostly, nearly massless particles coming from inside our galaxy and points beyond the Milky Way.

Finding these cosmic neutrinos not only confirms their existence but also sheds light on the origins of cosmic rays, the researchers said.

The IceCube Neutrino Observatory is made up of 86 shafts dug 8,000 feet into the ice near the South Pole. The shafts are equipped with detectors that look for the telltale light from high-energy particles plowing through the surrounding ice. [See Photos of the IceCube Observatory Buried in Ice

http://www.livescience.com/51927-cosmic-neutrinos-confirmed.html

GHOSTLY PARTICLES FROM OUTER SPACE DETECTED IN ANTARCTICA


082015icecubeobservatory

Finding these cosmic neutrinos not only confirms their existence but also sheds light on the origins of cosmic rays, the researchers said.

The IceCube Neutrino Observatory is made up of 86 shafts dug 8,000 feet into the ice near the South Pole. The shafts are equipped with detectors that look for the telltale light from high-energy particles plowing through the surrounding ice.

Neutrinos have little mass, and zip through matter so easily that a block of lead a light-year across wouldn’t stop them. These elusive particles come from high-energy sources: exploding stars, black holes and galactic cores among them.

http://www.infowars.com/ghostly-particles-from-outer-space-detected-in-antarctica/