There can be no dispute over the fact that the frequency, intensity and spread (new cities getting affected) of urban floods is increasing in India. The reasons are mostly known: increasing and mostly unplanned urbanisation, rural-urban migration, encroachments of water bodies, concretization of flood plains and other lands, decreasing capacity to hold, store, recharge and drain the rainwater, increasing rainfall intensities with changing climate, wrong operation of big dams and deteriorating governance. The damages are going up, also because our forecasts are far from reliable, accurate, location-specific or with sufficient lead time. Because of our incapacity to learn lessons. Disaster…
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