Greenhouse Gas Emissions
New weak point discovered in the Antarctic ice sheetScienceDaily.com | 11 May 2012
The Filchner-Ronne Ice Shelf fringing the Weddell Sea, Antarctica, may start to melt rapidly in this century and no longer act as a barrier for ice streams draining the Antarctic Ice Sheet, new research shows.
Cold winters caused by warmer summers, research suggestsScienceDaily.com | 12 Jan 2012
Scientists have offered up a convincing explanation for the harsh winters recently experienced in the Northern hemisphere: increasing temperatures and melting ice in the Arctic regions creating more snowfall in the autumn months at lower latitudes.
Russian runoff freshening Canadian Arctic, NASA findsScienceDaily.com | 04 Jan 2012
A new study allays concerns that melting Arctic sea ice could be increasing the amount of freshwater in the Arctic enough to have an impact on the global "ocean conveyor belt" that redistributes heat around our planet. Researchers detected a previously unknown redistribution of freshwater during...
2010 spike in Greenland ice loss lifted bedrock, GPS revealsScienceDaily.com | 09 Dec 2011
An unusually hot melting season in 2010 accelerated ice loss in southern Greenland by 100 billion tons - and large portions of the island's bedrock rose an additional quarter of an inch in response. That's the finding from a network of nearly 50 GPS stations planted along the Greenland coast to measure the bedrock's natural response to the ever-diminishing weight of ice above it.
Rare alpine insect may disappear with glaciersScienceDaily.com | 06 Apr 2011
Loss of glaciers and snowpack due to climate warming in alpine regions is putting pressure on a rare aquatic insect -- the meltwater stonefly, according to a new study.
Rare dinosaur found in Canada's oil sandsReuters | 25 Mar 2011
The Canadian oil sands, a vast expanse of tar and sand being mined for crude oil, yielded treasure of another kind this week when an oil company worker unearthed a 110-million-year-old dinosaur fossil that wasn't supposed to be there.
Prepare for Arctic struggle as climate changes, US navy warnedGuardian Unlimited | 10 Mar 2011
Climate change could upset the delicate security balance in the Arctic, warns National Academy of Sciences report America urgently needs to build up its military readiness in the Arctic where melting summer sea ice is setting up a global struggle for resources, a study prepared for the US navy has...
Melting ice sheets now largest contributor to sea level riseScienceDaily.com | 08 Mar 2011
The Greenland and Antarctic ice sheets are losing mass at an accelerating pace, according to a new satellite study. The findings of the study -- the longest to date of changes in polar ice sheet mass -- suggest these ice sheets are overtaking ice loss from Earth's mountain glaciers and ice caps to become the dominant contributor to global sea level rise, much sooner than model forecasts have predicted.
Some Antarctic ice forms from the bottom upReuters | 03 Mar 2011
Some of Antarctica's ice sheet is formed by water re-freezing from below not just by snow falling on top as was traditionally thought, findings showed on Thursday that will help scientists project effects of climate change.
Some Antarctic ice is forming from bottomScienceDaily.com | 03 Mar 2011
Scientists working in the remotest part of Antarctica have discovered that liquid water locked deep under the continent's coat of ice regularly thaws and refreezes to the bottom, creating as much as half the thickness of the ice in places, and actively modifying its structure. The finding, which turns common perceptions of glacial formation upside down, could reshape scientists' understanding of how the ice sheet expands and moves, and how it might react to warming climate, they say.
Researchers map out ice sheets shrinking during Ice AgeScienceDaily.com | 11 Feb 2011
A set of maps have illustrated, for the first time, how our last British ice sheet shrunk during the Ice Age. Experts developed the maps to understand what effect the current shrinking of ice sheets in parts of the Antarctic and Greenland will have on the speed of sea level rise.
Arctic current warmer than for 2,000 years: studyReuters | 28 Jan 2011
A North Atlantic current flowing into the Arctic Ocean is warmer than for at least 2,000 years in a sign that global warming is likely to bring ice-free seas around the North Pole in summers, a study showed.