Global water shortage

Global water shortagePaul Mayer, Georg Konrad, Peter Jernej

Actual water situation

Population without access to safe drinking water

Global use of water

Agriculture: 69%

Industry:23%

Domestic use, drinking water, sanitation: 8%

Water Scarcity in 2025

Water Scarcity in 2025

Physical water scarcity: these countries have not sufficient water resources for the needs in 2025

Economic water scarcity: this group has enough water resources, but only with regulations (more

supply than 1995, more than 25%)

No physical water shortage: no water scarcity, less water supplies than 25% of 1995

Impacts of the global water shortage

Relationship between food industry and global water

No access to fresh water – rise in diseases

Water plays an important role in trourism

Global water shortage – cross border problem

The location of water resources – not follow pollical boundaries

Most groundwater resources are shared by more than two states

Cross boundary concerns risks – conflicts, pollution upstream, blocking of waterways or

mismanagement of shared resources

Case Study China

China´s water resources

Water demand in China

Water Policies in China

8 major river basins of China´s water resources

YangtzeYellow (Huang)

Hai-LuanHuai

Song-LiaoPearl

SoutheastSouthwestNortwest

Map of major rivers and watersheds in China

Mortality Rate for Cancer Associated with Water Pollution (1/100,000) in

China, 2003 (world Average in 2000)

Water Demand 554.1km3 (2005) per annum (vgl. Bodensee

48km3)

industry 128.6 km3

municipal for private living, 67.53 km3

agricultural use 385 km3

307km long drainage from the south to the dry north (middle route). Costs: more than 2 billion

US$