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    Study: Earth Warmer Now Than Any Period in Last 1,400 Years

    Earth's climate warmed more during the last 30 years of the 20th century than it did during any other three-decade period in the past 1,400 years. That's the finding of a new study by more than 80 scientists from 24 nations, who conclude that the modern-day temperature increase was driven by rising emissions of carbon dioxide and other so-called greenhouse gases.

    The international research team reconstructed regional temperature shifts on all seven continents by analyzing climate data from tree rings, pollen, cave formations, ice cores, lake and ocean sediments, and historical records from around the world.

    The most consistent trend over the past two millennia was decades-long periods of cooling, likely caused by a rise in volcanic activity, a decrease in solar radiation, changes in ground cover vegetation and slow variations in Earth's orbit around the sun. But the data show that with the exception of Antarctica, that natural cooling tapered off at the end of the 19th century, coinciding with the onset of industrialization and the resulting increase in greenhouse gas emissions.

    The study, published in the journal Nature Geoscience, reveals that periods of warming and cooling might not have been global, with distinctive differences in average temperatures between the northern and southern hemispheres.

    The new research data will be made public and incorporated into the next climate report by the United Nations-sponsored Intergovernmental Panel on Climate Change.

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    German Artists to Memorialize Refugees With Life Jacket Exhibiti
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    Hamada Elsaram
    February 05, 2016 4:30 PM
    Sold in every kind of shop in some Turkish port towns, life jackets have become a symbol of the refugee crisis that brought a million people to Europe in 2015.  On the shores of Lesbos, Greece, German artists collect discarded life jackets as they prepare an art installation they plan to display in Germany.  For VOA, Hamada Elrasam has this report from Lesbos, Greece.
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    Video German Artists to Memorialize Refugees With Life Jacket Exhibit

    Sold in every kind of shop in some Turkish port towns, life jackets have become a symbol of the refugee crisis that brought a million people to Europe in 2015.  On the shores of Lesbos, Greece, German artists collect discarded life jackets as they prepare an art installation they plan to display in Germany.  For VOA, Hamada Elrasam has this report from Lesbos, Greece.
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    Video E-readers Help Ease Africa's Book Shortage

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    Video Genius Lets World Share Its Knowledge

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    Video Former Drug CEO Martin Shkreli Angers US Lawmakers

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    Video Super Bowl TV Commercials are Super Business for Advertisers

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    Video Solar Innovation Provides Cheap, Clean Energy to Kenya Residents

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    Video New Material May Reduce Concussion Effects

    As the 2016 National Football League season reaches its summit at the Super Bowl this coming Sunday (2/7), scientists are trying to learn how to more effectively protect football players from dangerous and damaging concussions. Researchers at Cardiff and Cambridge Universities say their origami-based material may solve the problem. VOA’s George Putic reports.
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    Video Saudi Arabian Women's Sports Chip Away at Stereotypes

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    Video A Year Later, Fortunes Mixed for Syrians Forging New Lives in Berlin

    In April of last year, VOA followed the progress of six young Syrian refugees -- four brothers and their two friends -- as they made their way from Libya to Italy by boat, and eventually to Germany. Reporter Henry Ridgwell caught up with the refugees again in Berlin, as they struggle to forge new lives amid the turmoil of Europe's refugee crisis.
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