26. 这些目标中最引人瞩目的是千年发展目标中有关饮用水和环境卫生的目标。千年发展目标具体目标 7.C 是“到 2015 年将无法持续获得安全饮用水和基本卫生设施的人口比例减半”。在实现饮用水目标方面，有关努力取得了成功。该目标在 2010 年提前五年实现，自 1990 年以来，有 26 亿人获得了饮用水，目前有91%的世界人口在使用经改善的饮用水源。虽然这是一项重大成就，10 但在千年发展目标期间结束的 2015 年，仍有 6.63 亿人生活在缺乏经改善饮用水源的条件下。11
26. The most visible of these goals were the targets included in the Millennium Development Goals concerning drinking water and sanitation. Millennium Development Goal target 7.C was to “halve, by 2015, the proportion of people without sustainable access to safe drinking water and sanitation”. For the target on drinking water, the effort was a success. The target was achieved five years ahead of schedule, in 2010, with 2.6 billion people having gained access since 1990 and 91 per cent of the world’s population currently using an improved drinking-water source.10 While this has been a significant achievement, 663 million people were still living without an improved drinking-water source by the end of the Millennium Development Goals period in 2015.11