The problem of fresh water

Many countries face serious water resource problems that are not only in quantitative water scarcity, but also in short supply of clean fresh water. Annually in reservoirs misses a huge amount of raw sewage. Among the most polluted rivers and lakes in the world of the Danube, Rhine, Seine, Mississippi, Volga, Dnieper, Ladoga lake, Balkhash, etc.

Table. Countries of the world, clean water-deficit (where less than 50% of the population has access to clean drinking water).

Country	Having access to fresh water
The Afghanistan Ethiopia Chad Sierra Leone Cambodia Mauritania Angola Oman Rwanda Papua new Guinea Equatorial Guinea Congo, DRC Eritrea Haiti Kenya

Food problem

The meaning of the global food problem is outstripping population growth compared to the growth in food production. As a result, the world is experiencing an increase in the number of malnourished and starving (annually from hunger, malnutrition and related illnesses die 40 million people). Growing human pressure on agricultural landscapes, deteriorating quality of food, the role of genetic engineering in solving the food problem.

On the Earth, there are belt of hunger, it stretches along the equator. As of tropical Africa is the epicenter of this belt. Countries with a high refractive starving Chad - 50%, Mozambique - 47%, Somalia - 45%, Uganda - 40%, Ethiopia - 39%.

Problems of resources

Energy and raw material problem - explains the explosive growth of consumption of fuel and raw materials. Only in the twentieth century in the world was produced and consumed fuel and raw materials more than ever before in human history. Been extracted from the earth 40% coal, 50% copper, 55% iron ore, 60% diamonds 75% oil, 80% gas. Science warns that at current energy consumption of proven fossil fuel reserves sufficient for about 150 years, including oil - for 35 years, gas - 45 years

The problems of human culture

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Lesson 20	\|	The problems of war

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