THOMAS JAMES HURST / THE SEATTLE TIMES
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Biofuel backlash: High prices, pollution worries hit consumers
Imperium Renewables' Sid Watts, far right, gives a tour of the company's biodiesel plant in Grays Harbor, one of the largest biodiesel plants in the United States. Imperium is trying to ride out the downturn in biodiesel by exporting most of its biodiesel and seeking nonfood sources of vegetable oil.
