According to a report , "Reuters" Friday, the planet Earth has about 10 percent of the wild regions during the past 20 years, due to human activities , which expanded at the expense of wilderness areas. Theresearchers pointed out that South America has lost 30 percent of wilderness areas through that period, while Africa lost 14 percent if the two continents are the most affected.

The researchers explained that the main reason of the loss of wild spaces is destroyed for the benefit ofagriculture or take advantage of the timber or mineral extraction. The study is published in the journal "Karndt biological", is the latest documenting the impact of human activities on the level of the world, affecting the planet 's climate and spaces and natural resources and the oceans and wildlife.

The researchers adopted in their studies to draw maps of wilderness areas in the world, and compared them with the old map developed in 1993, where Ojdoa changes in the wilderness areas.
It found that 30.1 million square kilometers in the world is still wild spaces, that is, they did not leave areas of human significant impact on the composition, and said that since 1993 has the planet's 3.3 million square kilometers of wilderness areas.