They worry that this boom (intensified by “green” subsidies for biofuel crops) may worsen poverty even more than low agricultural prices did.

他们反而担心，相对于较低价格而言，这次粮价的飞涨（因对生物燃料的绿色补贴而加剧）或许使贫困态势进一步恶化。

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Aside from the ethanol boom pushing up corn prices, critics argue producing the biofuel consumes more energy than it saves and might actually add to global warming concerns.

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