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| 1/17/2011 |
Strange Claim: The Sun Rose 2 Days Early in Greenland Residents of a town on the western coast of Greenland may have seen the sun peek over the horizon 48 hours earlier than its usual arrival on Jan. 13, sparking speculation, and disagreements, over possible causes. The town of Ilulissat sits just above the Arctic Circle, meaning its residents had been without any sunlight for a good chunk of the winter, and traditionally they'd expect to see their "first sunrise" on Jan. 13. News that the sun had peeked over the horizon on Jan. 11 appeared online in British and German-language publications and it appears to trace back to a story by the Greenland broadcasting company KNR that quotes residents who noticed the change. [Image Gallery: Sunrises and Sunsets] Of about half a dozen scientists contacted, most were unaware of the report, which was circulating on the Internet. They offered a number of hypothetical explanations, including an illusion caused by an atmospheric effect and conflicting opinions about whether global warming might be to blame for melting along the edges of Greenland's ice sheet. With less ice, Greenland's elevation may take a dip such that the sun would have less distance to travel before appearing over the horizon. (Live Science) | |||
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keywords: Alaska, Arctic Circle, Austria, Austrian Institute Of Astronomy, Climate Change, Germany, Greenland, Internet, Jakobshavn Isbrae, John Walsh, Knr, North Pole, Pennsylvania State University, Richard Alley, Sun, Thomas Posch, Tim Dixon, United Kingdom, United States, University Of Alaska, University Of Southern Florida
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| 3/25/2008 |
Vast Antarctic Ice Shelf on Verge of Collapse Scientists are shocked by the rapid change of events (Live Science) | |||
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| 3/12/2007 |
Sun Blamed for Warming of Earth and Other Worlds Earth is heating up lately, but so are Mars, Pluto and other worlds in our solar system, leading some scientists to speculate that a change in the sun’s activity is the common thread linking all these baking events. Others argue that such claims are misleading and create the false impression that rapid global warming, as Earth is experiencing, is a natural phenomenon. While evidence suggests fluctuations in solar activity can affect climate on Earth, and that it has done so in the past, the majority of climate scientists and astrophysicists agree that the sun is not to blame for the current and historically sudden uptick in global temperatures on Earth, which seems to be mostly a mess created by our own species. “Man-made greenhouse warming has [made a] small contribution [to] the warming on Earth in recent years, but [it] cannot compete with the increase in solar irradiance,” Abdussamatov told LiveScience in an email interview last week. “The considerable heating and cooling on the Earth and on Mars always will be practically parallel."But Abdussamatov’s critics say the Red Planet’s recent thawing is more likely due to natural variations in the planet’s orbit and tilt. On Earth, these wobbles, known as Milankovitch cycles, are thought to contribute to the onset and disappearance ice ages. “Global warming on Neptune's moon Triton as well as Jupiter and Pluto, and now Mars has some [scientists] scratching their heads over what could possibly be in common with the warming of all these planets ... Could there be something in common with all the planets in our solar system that might cause them all to warm at the same time?” (Live Science) | |||
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keywords: Benny Peiser, Charles Long, Climate Change, David Rind, Goddard Institute For Space Studies, Habibullo Abdussamatov, Intergovernmental Panel On Climate Change, Jeffrey Plaut, John Moores University, Jupiter, Mars, Maunder Minimum, Michael Mann, Milankovitch Cycles, National Aeronautics And Space Administration, Neptune, Pacific Northwest National Laboratories, Penn State University, Pluto, Pulkovo Astronomical Observatory, Russia, Sun, Triton
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