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Dairy farms reduce climate impact with methane digesters, but communities worry about expansion - Yahoo! Voices
Dairy farms reduce climate impact with methane digesters, but communities worry about expansion
A growing number of California dairy farms are reducing their climate impact with methane digesters that capture the heat-trapping gas so it can be used as biofuel. But farming communities worry about the impact on air quality. (AP Video/Terry Chea)
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