How does better sanitation help the environment?
Improved disposal of human waste protects the quality of drinking water sources.
Treatment and safe disposal of excreta protects water bodies, groundwater, eco-systems and bio-diversity.
If properly designed, sanitation systems can save water and recycle nutrients, thereby protecting natural resources.
Biogas digestion of faeces, manure and organic waste can be a renewable energy source.
The environmental impact of sanitation should not be underestimated!
Facts
- 90% of sewage in developing countries is discharged without treatment
- 70% of industrial waste in developing countries does not receive treatment*
- Urban to rural ratio of people globally with access to sanitation: 80% vs. 39%**
* UN 2003
** Progress for Children (PFC) 5