Politicians may tackle polluters while scientists do battle with carbon emissions.
政客们可能会解决污染者，而科学家们则会与碳排放作斗争。
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Frustrated by these restrictions, Subra left her job in 1981, created her own company, and has devoted the past two decades to helping people fight back against giant industrial polluters.
As part of her job, she conducted field research on toxic substances in the environment, often in minority communities located near large industrial polluters.