While it has been stated that, for the gap to be bridged, the current level of investments in the water supply and household sanitation sector would need to be doubled, at least a fourfold increase is needed in the area of wastewater collection and treatment to address those environmental aspects of water and sanitation.
حيث يجري بحث الارتباط الحرج بين المياه وتقليل الفقر ورفاه البشر بدرجة أكبر في الفرع دال من هذا الفصل فيما بعد.