July 18th, 2011
05:17 PM GMT
Valencia is a city busy rejuvenating its age old industries in oranges and rice.
Farming these products is no longer as economically important, and industry leaders are rethinking how they approach business.
Among other innovations, the orange industry is turning its leftover peels into bio fuel.
CNN’s Richard Quest reports on the new approach, and what means for the city’s future.
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