The new report by Oxfam claims that even if governments meet their climate and energy commitments for 2020, Europe's annual energy imports bill will soar from £325 billion to more than £400 billion by 2030 because of rising prices.
At the same time the EU's food import bill could rise as climate change hits countries where much of the bloc's food is produced, the report said, leaving Europe's poor struggling to pay for both heating and food.
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White House budget officials outlined the information during a telephone call with reporters given on condition of anonymity.
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