The figures will come as a relief to the world's rich countries which - the US aside - are legally committed to reducing emissions by a collective 5.2% on 1990 figures by 2012.
这些数据让包括美国在内的全球最富国家能够松一口气。根据协议，这些国家在2012年之前，需要将其排放量从1990年的基础上减少5.2%。
The talks began on Tuesday with poor nations demanding that rich ones agree to a second round of legally binding greenhouse gas emission reduction commitments under an updated Kyoto Protocol.
周二的谈判中穷国要求富国同意《京都议定书》第二轮承诺，这是具有法律约束力的温室气体减排承诺。
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