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Valley of the Sunflowers field - Phoenix, Arizona (25 images)

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(Phoenix, Arizona) "Valley of the Sunflowers," is a project that turned a vacant two-acre city block in Downtown Phoenix, Arizona into a sunflower field. High school science students will press the seeds to get oil and then create biodiesel fuel for a hybrid solar-biofuel vehicle project. Photos by Eduardo Barraza © 2011
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