In Maldives the average height above sea level(asl) is 4ft and the highest point is 8ft.Karachi on the average is 26 ft asl.If,for a moment,Karachi is considered virgin land with nothing built on it one can imagine that some natural drainage must have existed which is now blocked
Not only that but since water makes an alternate path those paths have also been blocked by all sorts of encroachment and legal/illegal buildings. So, therefore, cleaning up a few nullahs here and there is never going to be enough. What needs to be done is far more than that.
A new and comprehensive network of drainage needs to be planned and some of the old natural drains need to be interlinked to that comprehensive network even if it means removing illegal encroachments/buildings. Huge drains carrying rain water to the sea have to be built/rebuilt
Cosmetic approach to the problems of Karachi based on political point scoring and counter scoring is never going to help Karachi. This has gone on for too long. Karachi must be saved and made a prosperous city. All else is rhetorical politics.
