作者 Author

鲍姆•雷切尔

雷切尔·鲍姆，北卡罗来纳大学水资源研究所研究助理。

Rachel Baum is a research associate at The Water Institute, University of North Carolina.

04/06/2013

世界上能够使用清洁厕所的人远不如人们从前认为的那样多，这已经给公共健康和环境造成威胁。

Far fewer people have access to clean toilets than previously thought, threatening public health and the environment