How does fracking work? – 米婭·納卡穆利

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Deep underground lie stores of once-inaccessible natural gas. There’s a technology, called hydraulic fracturing, or “fracking,” that can extract this natural gas, potentially powering us for decades to come. So how does fracking work and why is it a source of such heated controversy? Mia Nacamulli explains the ins and outs of fracking.

Lesson by Mia Nacamulli, 莎朗·科爾曼 導演.