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News About Ice Ages
March 23, 2015
2015 Arctic Sea Ice Maximum Annual Extent Is Lowest On Record
Greenbelt MD (SPX) Mar 22, 2015
The sea ice cap of the Arctic appeared to reach its annual maximum winter extent on Feb. 25, according to data from the NASA-supported National Snow and Ice Data Center (NSIDC) at the University of Colorado, Boulder. At 5.61 million square miles (14.54 million square kilometers), this year's maximum extent was the smallest on the satellite record and also one of the earliest. Arctic sea ice, frozen seawater floating on top of the Arctic Ocean and its neighboring seas, is in constant change: it gro ... read more

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Blue blood on ice - How an Antarctic octopus survives the cold
An Antarctic octopus that lives in ice-cold water uses an unique strategy to transport oxygen in its blood, according to research published in Frontiers in Zoology. The study suggests that the octop ... more
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First global review on the status, future of Arctic marine mammals
For Arctic marine mammals, the future is especially uncertain. Loss of sea ice and warming temperatures are shifting already fragile Northern ecosystems. The precarious state of those mammals is und ... more
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In climatic tug of war, carbon released from thawing permafrost wins handily
There's a carbon showdown brewing in the Arctic as Earth's climate changes. On one side, thawing permafrost could release enormous amounts of long-frozen carbon into the atmosphere. On the opposing ... more
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East Antarctica melting could be explained by oceanic gateways
Researchers at The University of Texas at Austin's Institute for Geophysics (UTIG) in the Jackson School of Geosciences have discovered two seafloor gateways that could allow warm ocean water to rea ... more
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Global warming brings more snow to Antarctica
"Warmer air transports more moisture and hence produces more precipitation - in cold Antarctica this takes the form of snowfall," lead author Katja Frieler from the Potsdam Institute for Climate Imp ... more
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Friction means Antarctic glaciers more sensitive to climate change
One of the biggest unknowns in understanding the effects of climate change today is the melting rate of glacial ice in Antarctica. Scientists agree rising atmospheric and ocean temperatures could de ... more
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Ponds are disappearing in the Arctic
Ponds in the Arctic tundra are shrinking and slowly disappearing, according to a new study by University of Texas at El Paso (UTEP) researchers. More than 2,800 Arctic tundra ponds in the nort ... more
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More giant craters spotted in Russia's far north
Russian scientists have now discovered seven giant craters in remote Siberia, a geologist told AFP on Thursday, adding that the mysterious phenomenon was believed to be linked to climate change. ... more
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Eastern, High Arctic regain sea ice during cold winter
While sea ice around the globe nears record lows, the frozen ocean water in the Eastern and High Arctic has regained coverage and thickness at near-normal levels, thanks to one of the coldest winters in decades. ... more
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Methane in Arctic lake traced to groundwater from seasonal thawing
Global warming may ramp up the flow of methane from groundwater into Arctic lakes, allowing more of the potent greenhouse gas to bubble out into the atmosphere, according to a new study led by resea ... more
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Permafrost's turn of the microbes
As the Arctic warms, tons of carbon locked away in Arctic tundra will be transformed into the powerful greenhouse gases carbon dioxide and methane, but scientists know little about how that transiti ... more
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Genetics reveals where emperor penguins survived the last ice age
A study of how climate change has affected emperor penguins over the last 30,000 years found that only three populations may have survived during the last ice age, and that the Ross Sea in Antarctic ... more
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Emperor penguins may have suffered in ice age cold: study
They prefer freezing conditions but Antarctica's emperor penguins may have struggled with the cold during the last Ice Age when temperatures cooled, a study suggested Monday. ... more
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Combined Arctic ice observations show decades of loss
It's no surprise that Arctic sea ice is thinning. What is new is just how long, how steadily, and how much it has declined. University of Washington researchers compiled modern and historic measurem ... more
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The past might tell what the future holds for Greenland meltdown
A team of scientists lead by Danish geologist Nicolaj Krog Larsen have managed to quantify how the Greenland Ice Sheet reacted to a warm period 8,000-5,000 years ago. Back then temperatures were 2-4 ... more
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NASA measures frigid cloud top temps of the Arctic air outbreak
Some of the coldest air of the 2014-2015 winter season was settling over the eastern two-thirds of the U.S. on February 13, 2015. That Arctic air mass brought wind chills from below zero to the sing ... more
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Iceland rises as its glaciers melt from climate change
The Earth's crust under Iceland is rebounding as global warming melts the island's great ice caps, a University of Arizona-led team reports in an upcoming issue of Geophysical Research Letters. ... more
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Arctic sea ice loss expected to be bumpy in the short term
Arctic sea ice extent plunged precipitously from 2001 to 2007, then barely budged between 2007 and 2013. Even in a warming world, researchers should expect such unusual periods of no change--and rap ... more
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Arctic ice cap slides into the ocean
Satellite images have revealed that a remote Arctic ice cap has thinned by more than 50 metres since 2012 - about one sixth of its original thickness - and that it is now flowing 25 times faster. ... more
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Murkowski: Obama's Alaska move an act of war
The Obama administration has declared war on the economic future of Alaska by proposing new acreage as protected wilderness, congressional leaders said. ... more
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Scientists find translucent fish living under Antarctic ice shelf
It shouldn't be all that surprising at this point - living organisms defying the odds, that is. Life continues to turn up in the oddest places. This time, it's a fish scrounging out a lonely, frigid existence some 2,500 feet under the surface of Antarctica in a tiny wedge of seawater surrounded by ice. ... more
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Obama recommends extended wilderness zone in Alaska
US President Barack Obama said Sunday he would recommend a large swath of Alaska be designated as wilderness, the highest level of federal protection, in a move angering state oil proponents. ... more
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Antarctic drill team first to reach where ice, ocean and land converge
Using a specially designed hot-water drill to cleanly bore through a half mile of ice, a National Science Foundation (NSF)-funded team of researchers has become the first ever to reach and sample th ... more
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UNL drillers help make new Antarctic discoveries
Using a hot-water drill and an underwater robotic vehicle designed, built and operated by a University of Nebraska-Lincoln engineering team, scientists have made new discoveries about Antarctica's g ... more
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