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为了评估全球的水资源 ,已开发出一种新方法 ,用以确定目前缺水的地区 ,以及将来可能缺水的地区。该方法包括评估需水量改变的敏感性和气候变化对水资源的影响。基本方法是使用 0 .5°× 0 .5°(经纬度 )的网格代表可取得的水和水的需求量。该新方法包括 :·每个网格单元对所有
In order to assess global water resources, a new method has been developed to identify the current water-scarce areas and areas likely to be short of water. The methodology includes assessing the sensitivity of changes in water demand and the impact of climate change on water resources. The basic method is to use a grid of 0 .5 ° × 0 .5 ° (latitude and longitude) to represent the amount of water and water available. The new method includes: • Each grid cell pair is all