Expos showcase future of renewable energy: Fuel-efficient car, high-tech batteries shine at exhibitions

One of the few bright spots in the dark days of the global economic downturn is the field of renewable energy.

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<p><a href="http://www.physorg.com/news154890734.html">Expos showcase future of renewable energy: Fuel-efficient car, high-tech batteries shine at exhibitions</a></p> <p>One of the few bright spots in the dark days of the global economic downturn is the field of renewable energy.</p>