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News About Ice Ages
October 20, 2017
Drive for giant new marine sanctuary in Antarctica
Sydney (AFP) Oct 16, 2017
Australia and France kick off a fresh push Monday to create a vast marine sanctuary in pristine East Antarctica, hoping to build on the success of landmark deal secured last year at a key annual conservation summit. The fate of the plan to shield critical areas of ocean around the frozen continent rests with the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR), which meets in Hobart until October 27. In a major breakthrough, agreement was reached in 2016 to establish ... read more

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As ice sheet melts, Greenland's fjords become less salty
New data suggests the water around Greenland is becoming less salty as the island's ice sheet melts. ... more
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Thousands of penguin chicks starve in Antarctica
Mass starvation has wiped out thousands of penguin chicks in Antarctica, with unusually thick sea ice forcing their parents to forage further for food in what conservationists Friday called a "catastrophic breeding failure". ... more
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The melting ice makes the sea around Greenland less saline
For the first time, ocean data from Northeast Greenland reveals the long-term impact of the melting of the Greenland ice sheet. The observed increase in freshwater content will affect the conditions ... more
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Formation of coal almost turned our planet into a snowball
While burning coal today causes Earth to overheat, about 300 million years ago the formation of that same coal brought our planet close to global glaciation. For the first time, scientists show the ... more
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In warmer climates, Greenlandic deltas have grown
Deltas are important ecosystems, where freshwater meets the sea, and where people for centuries have been engaged in agriculture and fishing. Today, most of the deltas in the world are drowning beca ... more
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Return of the Weddell polynya supports Kiel climate model
Currently, winter has still a firm grip on Antarctica. At this time of the year, the Weddell Sea usually is covered with a thick layer of sea ice. In spite of the icy temperatures in the region, sat ... more
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Shipping risks rise as Antarctic ice hits record low
Sea ice cover in Antarctica dropped to a record low this year, scientists said Wednesday, as they warned the frozen continent's unpredictable nature poses growing risks to shipping including tourist cruises. ... more
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Winter cold extremes linked to high-altitude polar vortex weakening
When the strong winds that circle the Arctic slacken, cold polar air can escape and cause extreme winter chills in parts of the Northern hemisphere. A new study finds that these weak states have bec ... more

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Researchers take on atmospheric effects of Arctic snowmelt
Researchers at the University of Alaska Fairbanks' Geophysical Institute are exploring the changing chemistry of the Arctic's atmosphere to help answer the question of what happens as snow and ice b ... more
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End-of-summer Arctic sea ice extent is eighth lowest on record
Arctic sea ice appeared to have reached its yearly lowest extent on Sept. 13, NASA and the NASA-supported National Snow and Ice Data Center (NSIDC) at the University of Colorado Boulder have reporte ... more
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Ice age may have clipped bird migration
The onset of the last ice age may have forced some bird species to abandon their northerly migrations for thousands of years, says new research led by a University of Nebraska-Lincoln ornithologist. ... more
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Impact of Arctic amplification on East Asian winter climate
An ongoing research project aims to identify and explain teleconnections and future changes in the East Asian Winter Monsoon under Arctic Amplification. The project is led by Dr. Wen Zhou of City Un ... more
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Wind, Warm Water Revved Up Melting Antarctic Glaciers
A NASA study has located the Antarctic glaciers that accelerated the fastest between 2008 and 2014 and finds that the most likely cause of their speedup is an observed influx of warm water into the ... more
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Maiden mid-air refuel ensures supplies to Antarctic research station
Researchers at a remote Australian Antarctic station have received their first-ever food drop from a plane Tuesday after a successful maiden mid-air refuelling over the icy region. ... more
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Study shows Arctic sea ice continues to melt considerably
Arctic sea ice shrank to roughly 4.7 million square kilometers in September, making the sea ice extent in 2017 far below numbers from 1979 to 2006. ... more
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Warm Antarctic caves harbour secret life: scientists
A secret world of animals and plants - including unknown species - may live in warm caves under Antarctica's glaciers, scientists said Friday. ... more

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Bleak outlook for Asian glaciers
Asia's mountain glaciers will lose at least a third of their mass through global warming by century's end, with dire consequences for millions of people who rely on them for fresh water, researchers said Wednesday. ... more
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Ancient tree exposes cause of hike in Arctic temperature
Scientists from the University of New South Wales have found an ancient kauri tree in New Zealand that holds the key to the cause of rising Arctic temperatures. ... more
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Reindeer grazing protects tundra plant diversity in a warming climate
Climate warming reduces the number of plant species in the tundra, but plant-eating animals, such as reindeer and voles, can turn this negative effect into something positive. The results of a study ... more
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Massive Antarctic volcanic eruptions linked to abrupt Southern hemisphere climate changes
New findings published in the Proceedings of the National Academy of Sciences of the United States of America (PNAS) by Desert Research Institute (DRI) Professor Joseph R. McConnell, Ph.D., and coll ... more
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Experts call for added focus on the impact of glacier mass loss on downstream systems
Researchers have warned of an 'urgent worldwide need' to address a broad spectrum of cascading impacts of glacier mass loss on downstream systems. In their paper, published in Proceedings of the Nat ... more
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NASA scientists seek to improve sea ice predictions
Sea ice in the Arctic Ocean is in a downward spiral, with summer minimum extents about 40 percent smaller than in the 1980s. But predicting how the sea ice is going to behave in a particular year is ... more
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Record-low 2016 Antarctic sea ice due to 'perfect storm' of tropical, polar conditions
While winter sea ice in the Arctic is declining so dramatically that ships can now navigate those waters without any icebreaker escort, the scene in the Southern Hemisphere is very different. Sea ic ... more
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What changes when you warm the Antarctic Ocean just 1 degree
After warming a natural seabed in the Antarctic Ocean by just 1C or 2C, researchers observed massive impacts on a marine assemblage, as growth rates nearly doubled. The findings of what the research ... more
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