Smog over Tunis (www.yasour.com)
- Deforestation
- Soil depletion
- Water pollution
- Air pollution
- Hazardous waste
Water use is also an issue because of the growing problem of water pollution. Sewage infrastructure in Tunisia is not very developed. Outside the major cities, many communities still have open air sewage systems which flow unfiltered into local bodies of water. In addition, hazardous waste from industries such as mining and petroleum are often dumped untreated. These either end up in the waterways or leech into the groundwater. Farmers often need to use this groundwater for irrigation, which provides a further challenge in terms of competing economic sectors and water use. Jim Ellis and Kathleen A. Galvin in their article“Climate Patterns and Land-Use Practices in the Dry Zones of Africa” discuss the issues which farmers face in arid climates with limited resources and point out how local conflicts can be intensified when water becomes an issue.