Urban biofuel project brings sunflower field to downtown

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Phoenix, Arizona - "Valley of the Sunflowers," is a project that turned a two-acre city block in Phoenix into a sunflower field. High school science students will press the seeds to create biodiesel fuel for a hybrid solar-biofuel vehicle. Photo by Eduardo Barraza © 2011
Phoenix, Arizona - "Valley of the Sunflowers," is a project that turned a two-acre city block in Phoenix into a sunflower field. High school science students will press the seeds to create biodiesel fuel for a hybrid solar-biofuel vehicle. Photo by Eduardo Barraza © 2011
Filename: Sunflower_Field_Phoenix_Arizona_018.JPG
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