The indiscriminate use of fossil fuels in industrial activities and transport, due to the rapid development of industries in the great powers of the World, as well as population growth have produced sensitive increases in the amounts of nitrogen oxides and carbon dioxide present in the atmosphere,given the limited regenerative capacity, resulting another problem, deforestation.

The result is none other than the so-called "greenhouse effect", which involves raising the planet's temperature caused by the action of a certain group of gases that trap heat in the atmosphere, some of them massively produced by man.

Pollution of the atmosphere causes it to become thicker, preventing radiation to escape out into space and thus causing global warming. Typically, the radiation comes in light waves that warm the Earth, and then the heat escapes back into space in the form of infrared radiation; some of this radiation is trapped in part by the atmosphere to maintain a suitable temperature for life.

Global warming refers to the increase in global temperature since the late nineteenth century; this problem has its origin in human activity, mainly by emissions of carbon dioxide that have increased the greenhouse effect. The forecasts are not very encouraging, it is estimated that temperatures will continue to rise if action to reverse this process is not taken.

Every year millions of acres of tropical forests disappear. Between 1960 and 1990 more than 20% (33% in Asia and 18% in Africa and Latin America) have disappeared. The absorption of carbon dioxide and oxygen generation, essential for life depend on the process of photosynthesis of plants, but the destruction of forests shows no signs of stopping; on the contrary, deforestation of the Amazon still moves at a rate faster than in the 1980s, when this phenomenon aroused worldwide interest.

Through the projects and programs in which YFSE takes part, we seek to encourage awareness of the importance that represents the rescue and protection of forests to preserve life on Earth.