With a notable absence of fanfare, in May 2009 the WHO, together with the UN Environment Program, reverted to endorsing less effective methods for preventing malaria, announcing that their goal is “to achieve a 30% cut in the application of DDT worldwide by 2014 and its total phase-out by the early 2020s, if not sooner.” In the absence of effective vaccines or new anti-malarial drugs – and the funding and infrastructure to deliver them – this decision is tantamount to mass murder, a triumph of radical environmental politics over public health.
但是基于科学和数据的政策在联合国的半衰期很短。2009年5月，世界卫生组织和联合国环境署刻意低调地转向推广一些效果较差的防疟措施，并宣称他们的目标是“在2014年将DDT在全世界的使用量减低30%并最晚于2020年全面淘汰DDT。”在有效疫苗或新的抗疟疾药物（以及分派资金和体系）缺失的情况下，这一决策就等同于大屠杀，一场激进的环境政策之于公共卫生的胜利。