El explorador noruego Roald Amundsen fue el primer hombre en llegar al Polo Sur en diciembre de 1911. Más de 100 años más tarde, un equipo internacional de científicos dirigido por Joe McConnell, del Instituto de Investigación del Desierto de Nevada (DRI), ha demostrado que la contaminación atmosférica procedente de las actividades industriales llegó mucho antes. Utilizando datos de 16 muestras de hielo recogidas en lugares muy separados entre sí en todo el continente antártico...
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As the climate warms and sea ice retreats, the North is changing. An ice-covered expanse now has a season of increasingly open water that is predicted to extend across the whole Arctic Ocean before the middle of this century. Storms thus have the potential to create Arctic swell – huge waves that could add a new and unpredictable element to the region. A University of Washington researcher made the first study of waves in the middle of the Arctic Ocean, and detected house-sized waves during a September 2012 storm. The results were recently published in Geophysical Research Letters.
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El primer ejemplo de un dinosaurio herbívoro con plumas y escamas se ha descubierto en Rusia. Anteriormente, se sabía que sólo los dinosaurios que comían carne tenían plumas por lo que este nuevo hallazgo indica que todos dinosaurios podrían haber sido emplumados. El nuevo dinosaurio, llamado Kulindadromeus zabaikalicus ya que proviene de un sitio llamado Kulinda a orillas del río Olov en Siberia, se describe en un artículo publicado hoy en Science. Kulindadromeus muestra escamas epidérmicas en la cola y...
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More than 70 years after major turtle nesting beaches became protected on the remote UK overseas territory of Ascension Island researchers are now reporting a boom in population numbers. Scientists from the University of Exeter and Ascension Island Government Conservation Department report that the number of green turtles nesting at the remote South Atlantic outpost has increased by more than 500 per cent since records began in the 1970s.
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Turtles comprise one of the oldest living groups of reptiles, with hundreds of species found throughout the world. Many have been well-researched, and scientists know very specific things about their various evolutionary histories, metabolic rates, and the ways in which their sexes are determined. But there was one very obvious thing that has been largely left unknown by science until very recently. Turtles can make sounds.
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General Motors is bringing its OnStar-enabled Smart Grid solutions, to one of the largest electric vehicle collaborations to take place within the industry. Eight global automakers, including GM, and 15 electric utilities are working with the Electric Power Research Institute to develop and implement a standardized Smart Grid integration platform. "One thing that’s missing from most Smart Grid programs is a sense of collaboration," said Tim Nixon, chief technology officer, Global Connected Consumer, GM. "Companies will showcase a meaningful solution, but without widespread acceptance in the industry, its usability is limited. That's what makes this partnership unique."
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