Nature and EnvironmentDW exclusive with UN's Helen ClarkTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and Environment03/21/2017March 21, 2017The United Nations warns that human development progress is slowing down, leaving some groups, communities and societies behind. Helen Clark, head of the United Nations Development Programme, talks to DW about the 2016 Human Development Report.https://p.dw.com/p/2ZgSvAdvertisement