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Weighing the Pros and Cons of the Keystone Pipeline

The Keystone Pipeline has become a contentious issue in the last few years and on Sunday, Feb 10, a rally in Washington DC brought tens of thousands of people protesting the prospective project. Even if we discount the issue of increased oil burning and CO2 emissions, many environmental costs and possible social benefits still remain.

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Sea urchin nickel ‘trick’ could be key to capturing carbon

Researchers from Newcastle University have discovered that sea urchins use the metal nickel to convert carbon dioxide into bony shell. Like many sea creatures, sea urchins convert CO2 into calcium carbonate–essentially chalk. However, researchers found sea urchins use nickel in this process and that by adding extremely small particles of nickel to a solution of

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