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Water water everywhere and not a drop to drink (part 1)

the human body weight, needs to be topped up on a regular basis and we cannot go without it for more than about week. As well as drinking it, we also use water for cooking and sanitation, not to mention industrial processes. Yet despite water being essential to our survival, more often than not in the West, we treat it with distain. A fact reflected in its low price (compared to petrol or electricity -- things we may be addicted to but can live without?) and how the developed world fritters it away (you may leave the kitchen tap running into an unplugged sink at home but you would not pour petrol from the station pump down the drain, right?).

What makes matters worse in terms of our taking water for granted, is that despite 70% of the Earth’s surface being covered by water, only 2.5% of the total volume is freshwater resources and fit for human consumption. Coupled with the facts from the WBCSD and FAO that in 60% of European cities with more than 100,000 people, groundwater is being used at a faster rate than it can be replenished, by 2025, 1,800 million people will be living in countries or regions with absolute water scarcity, and two thirds of the world population could be under stress conditions.

Limitation of Urbanization: shortage of water resources, power supply and infrastructure in Beijing

Urbanization may be the most efficient method of development and the best method of resources conservation in the relately stable state of population and resources. But when the population is growing rapidly, the public facilities, infrastructures and resources supply can't keep up the pace. Thus it will bring a series of problems. Therefore, there's also a limitation for urbanization. For example, when we refer to Beijing, China, the resident population in Beijing of "11th Five-Year Plan" is expected to be 16.25 million. But in fact, at the end of 2009, the resident population in Beijing is about 17.55 million. This number was much more than that of the target of "11th Five-Year Plan" in Beijing, China.

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