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Food waste recycled separately can be used to produce electricity, reducing the amount of waste rotting in landfill and releasing greenhouse gases. It is also hoped it will encourage people to reduce how much food they waste in the first place.
Venezuela's oil is also of poorer quality than its Saudi equivalent. Its sour, heavy crude is difficult to extract and refine, while its high sulphur content makes it corrosive to pipelines. A resurgence of Venezuela's industry could pose problems for Canada, which produces similarly viscous oil and exports much of it to the US, but analysts reckon the risk is minor.