This year marks another milestone in the accumulation of carbon dioxide in the atmosphere. It has now reached 400 parts per million, and the rate of accumulation continues to rise. The experience of the past few years suggests that normal politics and diplomacy are unlikely to solve the problem of climate change. Only one thing is guaranteed to solve it: technological advance.
今年，大气中二氧化碳的积累达到了又一个里程碑式的高度。大气中二氧化碳的浓度如今已达400ppm，而且积累的速度还在持续加快。过去几年的经验表明，一般的政治与外交手段不太可能解决气候变化问题。只有一种方法可以确保解决这一问题：技术进步。
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