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In page Kyoto Protocol and government action:

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The position of the EU is not without controversy in Protocol negotiations, however. One criticism is that, rather than reducing 8%, all the EU member countries should cut 15% as the EU insisted a uniform target of 15% for other developed countries during the negotiation while allowing itself to share a big reduction in the former East Germany to meet the 15% goal for the entire EU.[citation needed] According to Aldy et al. (2003, p. 7), the "hot air" in German and UK targets allows the EU to meet its Kyoto target at low cost.[5]