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Snowy invaders point to Arctic thaw
04-03-2007 · EurekAlert!Could climate change be to blame for the increase in numbers of snow geese that visit the US each winter? Wildlife experts say that warming temperatures on the Arctic Island where the birds nest, has led to a breeding boom. But not everyone is happy with the invading birds. Some farmers are declaring war on the geese where thousands of them have ravaged their fields and crops.
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- Arctic sea ice decline may trigger climate change cascade, says University of Colorado study
03-15-2007 · EurekAlert!
Arctic sea ice that has been dwindling for several decades may have reached a tipping point that could trigger a cascade of climate change reaching into Earth's temperate regions, says a new University of Colorado at Boulder study.
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- Narwhals May Produce Signature Vocalizations For Communications
10-02-2006 · ScienceDaily
Scientists have found preliminary evidence that narwhals, Arctic whales whose spiraled tusks gave rise to the myth of the unicorn, produce signature vocalizations that may facilitate individual recognition or their reunion with more distant group members.
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- DNA gives new perspectives to understand the mysteries of nature
02-13-2007 · EurekAlert!
Scientific breakthrough: What caused the extinction of the woolly rhinoceros ten thousand years ago from an area in Europe covering the coasts of the Arctic Ocean in the north to the coasts of the Mediterranean in the south? What caused the extinction of the mammoth while other ice age mammals like the musk ox just barely survived to present day. A new scientific methodological approach to detect genetic material will help researchers to solve the many mysteries of the past.
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- Volcanic eruptions, ancient global warming linked
04-26-2007 · EurekAlert!
A team of scientists announced today confirmation of a link between massive volcanic eruptions along the east coast of Greenland and in the western British Isles about 55 million years ago and a period of global warming that raised sea surface temperatures by 5 degrees (Celsius) in the tropics and more than 6 degrees in the Arctic.
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- Arctic ocean history is deciphered by ocean-drilling research team
06-20-2007 · EurekAlert!
Sediment cores retrieved from the Arctic’s deep-sea floor by the Integrated Ocean Drilling Program’s Arctic Coring Expedition (ACEX) have provided long-absent data to scientists who report new findings in the June 21 issue of Nature.
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- Satellites witness lowest Arctic ice coverage in history
09-14-2007 · European Space Agency (ESA)
The area covered by sea ice in the Arctic has shrunk to its lowest level this week since satellite measurements began nearly 30 years ago, opening up the Northwest Passage – a long-sought short cut between Europe and Asia that has been historically impassable.
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- Rising CO2 signals wetter storms for Northern Hemisphere, says CU-Boulder study
12-11-2007 · EurekAlert!
While two new studies by researchers at the University of Colorado at Boulder's Cooperative Institute for Research in Environmental Sciences predict wetter storms for the Arctic and for the Northern Hemisphere because of global warming, whether or not this means more net precipitation depends on the latitude.
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- Mellow in Europe, crazy in America
02-26-2007 · EurekAlert!
Reed canarygrass stays put in Europe where it's native, but is aggressively expanding into wetlands across North America. Using this grass as a model, University of Vermont researchers have revealed a new way that some plants become invasive: Multiple introductions of the same species from numerous regions lead to new strains which grow more aggressively than the original plants. With climate change, this kind of invader may become increasingly successful.
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- Tabletop Experiment Yields Bubbly Surprise
10-06-2006 · ScienceDaily
University of Chicago physicists have discovered a new class of behavior in air bubbles rising from an underwater nozzle. In this surprising behavior, the bubbles tear apart in sharp jerks instead of pinching off at a point, the research team will report in the Oct. 6 issue of the journal Physical Review Letters.
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- End of deforestation in view? Experts advance new way to size up global forest resources
11-13-2006 · EurekAlert!
An increasing number of countries and regions are transitioning from deforestation to afforestation, raising hopes for a turning point for the world as a whole, according to researchers advancing a more sophisticated approach to measuring forest cover. The novel approach looks beyond simply how much of a nation's area is covered by trees and considers the volume of timber, biomass and captured carbon within the area.
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