Deforestation is the process of disappearance of forests and woodlands, mainly caused by human activity. Logging or burning trees, is directly caused by the action of man over nature, mainly due to logging by the timber industry and for the acquisition of land for agricultural crops.
Biodiversity loss is usually associated with logging.

In more developed countries will produce other attacks, such as acid rain, which affect the survival of forests, a situation to be monitored by the requirement of quality standards for fuels, such as limiting the sulfur content.

However, it should be noted that forests are reforestation, over many decades and sometimes centuries, to be the bio-system for optimal use of sunlight.

One of the consequences of deforestation, mainly caused by the creation of new farmland, which is performed in many places that are essential for the development of some endangered species, or unique in that this place and often , the same forests where logging is an important water source.

Another consequence of deforestation is the removal of carbon dioxide sinks, reducing the capacity of the environment to absorb the huge quantities of this gas causing the greenhouse effect, and aggravating the problem of global warming.

With containment measure, various international agencies suggest reforested, measured partly accepted by the environmental movements, to understand that these restocking should be considered not only the elimination of carbon dioxide, but also the biodiversity of the area to restock.

Modifying local climate, the rest of the jungle or forest becomes less able to retain moisture, leading to a less humid climate which is damaging to crops for which the trees were felled.