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Last updated on April 24, 2014 at 17:35 EDT

Science News Archive - June 16, 2009

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Volunteers at a conservation center in Namibia are working to protect endangered cheetahs, which are often killed by farmers because they are deemed threatening.

Massachusetts Institute of Technology mathematicians have developed a computer model describing how and under what conditions traffic backups occur. The researchers said countless hours are lost in U.S.

University of Alberta researchers conducting a water study in the Mackenzie River Delta have found a dramatically higher delivery of mercury from the Mackenzie River to the Arctic Ocean than determined in previous studies.

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Ecologists are finally publishing decades of research that assisted them in the project that rescued the Large Blue butterfly from extinction in the United Kingdom after its re-introduction efforts.

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A University of Colorado at Boulder team has uncovered an ancient and previously unknown Maya agricultural system.

Extreme weather, drought, heavy rainfall and increasing temperatures are a fact of life in many parts of the U.S. as a result of human-induced climate change, researchers report today in a new assessment.

Canadian scientists say they've found increasing amounts of antibiotics, anti-microbials and anti-fungals in waterways might affect aquatic microbiota. Researchers at the University of Montreal and Environment Canada say the anti-infectives are seeping into North American, European and East Asian waterways. Anti-infectives are constantly discharged, at trace levels, in natural waters near urban centers and agricultural areas, Professor Sebastien Sauve, the study's senior author, said.

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On Tuesday, a new hydrogen car was unveiled in London that is designed for use in cities and is backed by sports car maker Porsche.

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Argentine researchers suggest that the Andes, the largest mountain chain on the American continent, are losing altitude in some areas.