But one critical question remains unresolved: How can we ensure that these voluntary individual pledges add up to a collective solution to a global problem? Current calculations indicate that if the submitted INDCs, covering nearly 90% of global emissions, are implemented, global warming will probably still exceed 2° Celsius (3.6° Fahrenheit) – the threshold beyond which climate change’s most disastrous consequences would be triggered.
但有一个关键问题仍未得到解决：我们如何才能确保这些自愿的个体承诺合在一起构成全球问题的集体解决方案？目前的计算数据表明如果涉及近90%全球排放的已提交INDC全部得到落实，全球变暖可能仍将超过2摄氏度（3.6华氏度）——一旦超过这一阈值可能会引发气候变化最灾难性的后果。