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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Addressing an audience in America, the former PM said of Europe's single currency that it was not working "as intended".
The countries lawmakers voted to impeach President Park Geun-hye in the wake of mass protests against her.
The former presidential candidate, who has herself been the target of false news reports, said such stories had 'real-world consequences'.