The common expression in France that great rivers are created out of tiny streams captures the sort of strategy for countering global warming through sustainable development that I believe could be effective. Local actions that are then developed as part of an exchange between cities could have a global impact in the long term.
法国有句俗语叫涓涓细流汇成大河，在我看来这恰恰抓住了通过可持续发展应对全球变暖问题的战略实质。作为城市交流组成部分的区域措施从长远看可能会造成全球性的影响。因此我极力鼓励能够放眼全球的地方性倡议。