Threatens us, the world's water shortage

The global crisis has affected water. Climate change, which many scientists blame the irresponsible behavior of the great powers, the world's highest transmitter exhaust gases that cause the greenhouse effect, caused by parallel - drought and massive floods.

Although, as seen from space, two-thirds of our planet is covered with water, the view from the ground reveals a completely different picture. Only two and a half percent of that water is usable for drinking.

- Photo of dead cows in the wilderness that evokes any reference to the global water crisis, for many people it is a reality. But in this crisis there are many more dimensions - said Professor Jeff Debelko, an expert in ecology from the University of Ohio.

Because high water flooding, or sea level increase due to devastating storm, it is equally deadly as the "classic" thirst for want of drinking water. Global population growth to a billion by 2025. The only will provide experts to complicate things.

Not only will it increase the population, but their habitats will be moved to the cities, and it is anticipated that by 2050. as much as two-thirds of humanity to live in them. This means that water needs, but critical in arid regions of the world, in addition to the increase. The consequences are numerous, from the food to the industry.
Some richer countries, such as China, Saudi Arabia and South Korea, therefore, of interest already occupied land in developing countries. According to the forecasts of the Group for Water Resources, 2030. The water demand could exceed "bid" for as much as 40 percent.
Accelerated water consumption has been recorded in North Africa, the Middle East and Asia. According to data from the UN Food and Agriculture Organization in less than 40 years, one in five developing countries will not have enough water.
Symptomatic example of India, where the satellite photos of the north, they found a worrying degree of soil drying due to large-scale irrigation. Ground water is reduced by as much as 30 centimeters a year, threatening crisis in the supply of the precious liquid for about 115 million people. According to UN data, the use of groundwater to total tripled in the last 50 years. In China and India, and the water is consumed faster than they can be renewed.
The result is that half of the global population lives in countries where there are serious problems with water supply. This trend is further accelerated due to the cutting of forests, land drainage, poor maintenance of water infrastructure in cities.
Climate change is a "trigger" for both water shortages, and floods. First they best illustrate the drought in some parts of the world, including Serbia. The heat in the U.S. and Europe, for which Panel on Climate Change, says it will only increase next year, but it caused a chain reaction of consequences, most notably a jump in food prices. The targets are the poorest who spend more than half of income on food. The same cause, on the other hand, products in other parts of the world the opposite effect - mass floods:

- We always knew that the hurricane as a "send" can come to New York. But it is happening now with the elevated level of the sea, which continues to rise - notes drought specialist at Columbia University in New York Richard Seager.

By mid-century, annual runoff of water in some tropical regions will be increased to 20 to 40 percent, and will reduce by 10 to 30 percent in some areas, but dry, predicts Panel on Climate Change. That could hit many waterless areas of the Mediterranean, through parts of the United States, southern Africa, northeastern Brazil, to Australia.

More than a sixth of the world's population relies on water from melting glaciers. But because of climate change, predicts the U.S. National Intelligence Council, this immigration will be reduced and does cause problems with water supply.

Overall, the OECD predicts that by 2030. Almost half the world's population to live under stress due to water, each of thirst, another flood. The risks of drought and excessive water overflow to the end of the century will be increased.

Greatly affected the urban areas of the developing world, but the weather woes could be developed to such an extent that harm the well-controlled structure as now, generally, does the United States. National Intelligence Council, moreover, predicts that the whole country could find themselves in trouble because of the water, when people are dissatisfied with the government's wrath poured out.

If problems are not solved in time, it is anticipated that the supply of water to be complicated, and the risks of disease, energy woes, will open conflict inevitable.