Petrol with a bioethanol share of 10 percent, also known as E10, was meant to protect the environment. But the environmental impact may even be negative, as forests are cut down for the cultivation of palm oil.
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In fact, the environmental impact may even be negative, for example when forests are cut down for the cultivation of palm oil, and it’s particularly questionable when cereals, sugar beet or cane or soy beans are processed into biofuel instead of food.