London (Reuters) - The world must invest heavily in fossil fuels or face an energy crisis, said leaders of the oil industry gathered in London this week as they voiced scepticism about prospects for a climate change deal in Copenhagen.The oil industry has shifted its message to a more climate-friendly approach, but argued that for now oil and gas were the ways to meet the world's energy needs."There is no getting away from fossil fuels," said Nigerian Oil Minister Rilwanu Lukman, speaking on the sidelines of the Oil and Money industry conference.
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