THE Sindh chief minister, while reflecting on Karachi’s water woes, recently observed that water supply is only part of the problem. “Saving water through better canal management and lining works is as important as developing new water infrastructure,” he remarked at a meeting held to review measures for improving Karachi’s water supply. Those are wise words. But while the chief minister was referring to the canals and conduits that bring water to Karachi, the authorities must pay equal attention to what happens........

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