some reminded figures about 人口环境

人口问题，环境问题，越来越尖锐了。

北京人口
Das gesamte Verwaltungsgebiet Pekings hat 17,147 Millionen Einwohner (Juni.2007). Davon sind 12,04 Millionen registrierte Bewohner mit ständigem Wohnsitz und 5,107 Millionen temporäre Einwohner mit befristeter Aufenthaltsgenehmigung.

南水北调工程
Wassermangel in Peking ist ein sehr ernstes Problem!
Es ist sehr nicht vernünftig, die Umwelt zu zerstören：
The South-North Water Transfer Project (Chinese:南水北调工程; Pinyin: Nanshuibeidiao gongcheng) is a proposed scheme by the People's Republic of China to divert water from the Yangtze River to the Yellow River and Hai River. Northern China's climate is much drier than that of Southern China, and the Yellow River and Hai River carries a much lower volume of water than the Yangtze. As a result of diverting water for industrial and agricultural uses, the Yellow River has often gone dry in its lower reaches in recent decades and some of the Hai River tributaries almost dried out throughout the year. The water transfer project seeks to increase the flow of the Yellow River and Hai River by diverting water north from the Yangtze.

中线工程，从丹江口水库调水
Central Route
The central route is from Danjiangkou Reservoir（von meiner Heimat！！！） on Han river to Beijing. This route is built on the North China Plain and water can flow all the way to Beijing by gravity. The main engineering challenge is to build a tunnel under the Yellow River to move the water to the north of Yellow River. The water from Danjiangkou Reservoir is expected to reach Beijing by 2008 and the whole project is expected to complete around 2010. The major difficulty is the resettlement of ~250,000 persons around Danjiangkou Reservoir and along the route. The other problem is the influence on the Han River, where ~1/3 water are diverted. One long-term solution is to build another canal to divert water from the Three Gorges Dam to Danjiangkou Reservoir.