Farmworkers pick strawberries along a highway in California.
Nearly 23,000 people have joined an online campaign over the last two days, urging Governor Jerry Brown to ban a chemical called methyl iodide that's used on strawberries. California has approved the use of methyl iodide injected into the soil, although it is also listed by the state as a known carcinogen. Reporter: Sasha Khokha
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