I really like this discussion and it is very timely. I am working on adaptive (adaptation) solutions this time in Africa in arid and semi arid countries where dams (10 to 14 m height collinear dams have been used as a solution both to prevent flooding and to collect water during floods but also normal rainwater in the rainy seasons). I am not very comfortable with dams. They may be a solution to collect water from floods and excessive rain but they are not the solution to conserve water as evaporation is probably 40 % in this particular country. Furthermore, the reservoirs created by those dams are the subject of pollution etc.. Yes underground storage is interesting but can you store trillions of cubic meter of water ? as in dams ? and once the water is stored how do you use it for irrigation , for e.g. micro scale irrigation and communal purposes and what are the costs involved ? in any case I am suggesting to test a pilot project and I need a bit more technical details .......Thank you
I really like this discussion and it is very timely. I am working on adaptive (adaptation) solutions this time in Africa in arid and semi arid countries where dams (10 to 14 m height collinear dams have been used as a solution both to prevent flooding and to collect water during floods but also normal rainwater in the rainy seasons). I am not very comfortable with dams. They may be a solution to collect water from floods and excessive rain but they are not the solution to conserve water as evaporation is probably 40 % in this particular country. Furthermore, the reservoirs created by those dams are the subject of pollution etc.. Yes underground storage is interesting but can you store trillions of cubic meter of water ? as in dams ? and once the water is stored how do you use it for irrigation , for e.g. micro scale irrigation and communal purposes and what are the costs involved ? in any case I am suggesting to test a pilot project and I need a bit more technical details .......Thank you