And, though the data are somewhat inconsistent, it is clear that the world is spending more on the environment. Aid for environmental projects has increased from about 5% of measured bilateral aid in 1980 to almost 30% today, bringing the annual total to about $25 billion.
此外，尽管数据方面存在一些不一致，但显然世界在环境方面的支出也在增加。环境项目援助占双边援助的比例从1980年的5%左右增加到今天的近30%，相当于每年250美元。