Sustainable development has “gotten stuck over the past 20 years” and the internal UN Commission on Sustainable development “hasn’t provided the framework” needed to track and accelerate environmental governance says Achim Steiner, the under-secretary general of the United Nations and executive director of the UN Environment Programme (UNEP). During a recent visit to IIED, he outlined what he would like to see come out of Rio+20 in order to set the planet on a more sustainable future course.