U.S. exporting its fuel waste product to already polluted India

Petroleum coke or pet coke, is the bottom-of-the-barrel leftovers from the refining of Canadian oilsands crude oil and other heavy oils. Nearly pure carbon, pet coke is a potent source of carbon dioxide if burned. Pet coke is either calcined, the product of the coker unit in a crude oil refinery, or uncalcined, meaning it has not been treated, the Digital Journal reports.

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