Early findings show that competitions are leading to a shift in the priorities of the government, making sanitation more visible and important (Ideas to Impact, 2015). The ‘Innovation in Water, Sanitation and Hygiene’ case study shows that although the general picture is one of incremental change, priorities have shifted between the three subsectors, leading to differences in the pace of innovation in each area (Rush and Marshall, 2015: 1).As requested, a number of experts were consulted for their opinion where there was a lack of project evaluations or grey literature. Case study information was collated from African, Middle Eastern, South Asian and Caribbean countries. What innovative WASH options exist for situations of severe population overcrowding and limited space? What lessons have been learned from their application?Ī rapid review of the literature has found a selection of innovative WASH options available for situations of severe population overcrowding and limited spaces.
