Satellite observations and a state-of-the art regional atmospheric model have independently confirmed that the Greenland ice sheet is loosing mass at an accelerating rate, reports a new study in Science. This mass loss is equally distributed between increased iceberg production, driven by acceleration of Greenland’s fast-flowing outlet glaciers, and increased meltwater production at the ice […]
(University of California – Davis) California experienced centuries-long droughts in the past 20,000 years that coincided with the thawing of ice caps in the Arctic, according to a new study by UC Davis doctoral student Jessica Oster and geology professor Isabel Montañez. The finding, which comes from analyzing stalagmites from Moaning Cavern in the central […]
By Staff Writers, Buffalo NY (SPX) Oct 29, 2009 The possibility that climate change might simply be a natural variation like others that have occurred throughout geologic time is dimming, according to evidence in a Proceedings of the National Academy of Sciences paper. The research reveals that sediments retrieved by University at Buffalo geologists from […]
Jakobshavn Glacier in western Greenland has been rapidly losing ice from its terminus for more than a decade due to warm water currents reaching up the fjord. The arrow indicates direction of discharge, while the glacier retreats back towards the Greenland Ice Sheet. Another study focused on western Greenland’s Jakobshavn Isbrae responsible for draining 7 […]
By RANDOLPH E. SCHMID, AP Science Writer WASHINGTON — Global warming is messing with the planet’s thermostat. That warning came Thursday from Richard Spinrad, head of research at the National Oceanic and Atmospheric Administration, in releasing the annual update of science’s Arctic report card [pdf]. Warming temperatures continue in the polar north, changing wind patterns, […]
Satellite measurements of winter multi-year ice cover in the Arctic Ocean between 2004 and 2008, along with the corresponding downward trend in overall winter sea-ice volume, and switch in dominant ice type from multi-year ice to first-year ice. During the last few decades of the 20th century, the positive phase of the Northern Annular Mode […]
By Luke Harding in Marresale, on the Yamal peninsula For 1,000 years the indigenous Nenets people have herded their reindeer along the Yamal peninsula. But their survival in this remote region of north-west Siberia is under serious threat from climate change as Russia’s ancient permafrost meltsBy Luke Harding in Marresale, on the Yamal peninsula It […]
Arctic waters are rapidly turning acidic, even faster than originally thought. New research from oceanographer Dr. James Orr of the Laboratory for the Sciences of Climate and Environment in Paris predicts that the Arctic Ocean will be corrosive enough to dissolve shells of clams, mussels and others within the next decade. Host Jeff Young talks […]
This figure shows the mean extent of permafrost in the Arctic, estimated for (a) the years 1990-2000 and (b) the years 2090-2100. In (c), the estimation of loss of permafrost by 2100 is overlaid on estimates for the year 2000. The Arctic could potentially alter the Earth’s climate by becoming a possible source of global […]
By Peter Griffiths LONDON (Reuters) – Global warming will leave the Arctic Ocean ice-free during the summer within 20 years, raising sea levels and harming wildlife such as seals and polar bears, a leading British polar scientist said on Thursday. Peter Wadhams, professor of ocean physics at the University of Cambridge, said much of […]
