This sort of technology park tests new unconventional sanitation techniques for small and isolated communities and identifies the best option according to climatic conditions and the specific pollutants involved. However, far slower progress is expected in developing countries (RoW). The United Nations estimates that by 2015, 89% of the population in developing regions are likely to have access to improved sources of drinking water, compared with 70% in 1990 (UN, 2011). The MDG of halving by 2015 the 1990 level of population without improved water supply is expected to be met in most regions, but not in Sub-Saharan Africa. This is so for three reasons.