As reported vesti.ru, Independent journalist writes that 70% of the world's water is in agriculture, and the remaining thirty percent — for domestic and industrial use. Soon, the 30% may not be enough at all.
The ground water level has fallen sharply over the world. Himalayan glaciers melts strongly over the next 50 years, resulting in a reduction of the content of fresh water in glaciers. Level of many rivers, including giants such as the Nile and the Ganges, reduced now.
So, Bangladesh suffers from drying Ganges, on the one hand, and from the increase in population of the country — on the other. Aquifer soil in many places is reduced so rapidly that NASA satellites managed to fix the subsequent change in the Earth's gravity. Researchers Organization The Water Resources Group found that the rates of water supply in India will fall by 50% by 2030, and demand for water around the world, in this case, increase by 40%.
Sixty years ago, the world population was about 1, 25 billion. At that time, even the inhabitants of drylands thought about water crisis. Then there was the so-called Green Revolution, which resulted in crop yields have soared, growing of which depends largely on the fertilizer and to a much lesser extent — from direct irrigation. By 2050, scientists predict, the world population will increase to nine billion people, with 4 billion of them will live in areas with chronic water shortages.
Experts fear that after the environment completely changed the geopolitical picture of the world. For example, obmelchanie Nile could lead to rampant migration from Egypt to neighboring countries. Tens of thousands of people, scientists predict, will leave Egypt in search of water.
How can you prevent disaster? Independent journalist offers 4 ways out of the "water crisis."
First, he says, can create underground reservoirs of water, replace the pipe channels and devices to more modern to avoid possible leaks water.If Second, the author suggests, you need to throw all the power to create and modification of new crops, more drought-resistant than those that exist today.
True, said the journalist, it is not the easiest way. A third way out of the crisis — water desalination, which is practiced now. True, it is expensive, which many developing countries can afford only in extreme cases, the journalist writes. Finally, just to start saving water. Now people refer to water as something that is almost always available. In the future, the author fears, the value of fresh water may well be comparable to the cost of oil.
Ensure that this does not happen, the journalist said, people need to rethink their attitude to water. This applies to both engineers and scientists, and to the ordinary people. You can start with the fact that he always closes the valve when you go out for a minute out of the bathroom while washing, he writes.