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THE ENERGETIC PROBLEM IN ITALY AND ALL OVER THE WORLD.

An Italian citizen today spend, on average per year, directly or indirectly, a quantity of energy equivalent to 24 barrels of oil, while at the beginning of the' 900 it spent a quantity equivalent to 2 barrels. Almost everywhere in the world is increasing the demand for energy.

In fact, only in the last 20 years, the world population grew by 1, 2 billion units and that in the next ten years, and in China and India, the consumption of energy will double. All this will inevitably "sketch' increasingly in the high cost of oil, which has already reached levels hardly bearable for the pockets of many citizens.

In a brief glimpse of history, our society is " burning" what nature has created hundreds in millions of years. It is estimated that the oil reserves currently available are a thousand billion barrels and that, whereas the current trend of growth in energy consumption, they might run out in less than 30 years.

Technological progress has certainly contributed significantly to increase the quality of life of the men, but the price to pay for this model of development is proving very salty!

From this general framework it is clear that the future of our planet will pass through the use of renewable energy sources, such as hydroelectric, aeolic, geothermal, and especially the solar energy. This must be done to avoid to support all those "invisible costs" that the exploitation of fossil fuels inevitably leads behind, but that too often is not calculated in the total energy costs. As for example costs due to climate change, to the pollution of water and air, to environmental disasters (e.g. the sinking of tankers), to massacres in mines or the implemented for miners (for the extraction of coal), the wars for the up of the deposits of oil.

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