More than 50% of the world's population already live in cities, and the proportion is rising extremely rapidly towards developed country levels of more than 90%. Groundwater from wells is the major source of water supply for many of these cities, however, groundwater is polluted by the cities that overlie it and sewerage systems are oft
Pages: 296
Category: Miljövetenskap & Klimat
e-ISBN: 9781135290931
Shipping weight: 1.2 kg
Ships in: 1-2 days
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