Fourth, the agreement contains mechanisms to facilitate international linkage, including scope for residents of rich countries to finance emissions reductions in poor countries. This is important because it is cheaper to pay a poor country to refrain from building new coal-fired power plants than it is to shut down an existing plant in a rich country.
第四，巴黎协定包含了促进国际联系的机制，包括富裕国家居民为贫穷国家减排融资的规模。这一点很重要，因为掏钱让穷国不要建造新燃煤发电站要比关闭富国的已有燃煤发电站代价低廉。而以低成本实现第一轮INDC将是决定各国在未来采取进一步措施的重要因素。