"Dhaka, Bangladesh, is poised to become one of most populous cities in the world that requires new buildings to collect rainwater on their roofs… Dhaka’s population—more than 15 million people—requires 2.4 billion liters of water a day, but the city can only produce 2.1 billion liters. Stored rainwater can provide an alternative to polluted rivers and dwindling groundwater supplies for drinking."
Via GOOD, on Rainwater Harvesting in large urban cities. (via invest2innovate)
exactly! As long as it’s properly filtered, this is a great solution to urban water shortages.
(Source: GOOD, via invest2innovate)