இந்த Link உங்கள் மொழியில் இல்லை, இதில் பார்க்கவும்: English (en),
அல்லது Google Translate பயன்படுத்த:  

answers.practicalaction.org/our-resou...tation-1-2

Over 1.1 billion people lack access to safe drinking water and 2.6 billion people lack adequate sanitation. These are basic human rights. Many low-cost, community-run schemes can be set up to improve health, wellbeing and environmental conditions, and generate some income.