Today, all over the world celebrate World Day for the Preservation of habitats. This holiday was established in 1979 under the Bern Convention on the Conservation of European Wildlife and Natural Habitats.
A man of his activities have long been influenced by nature, changing it. Every year in the world more and more areas go to the category of farmland, pastures, are subject to change due to the growth of cities, mining, construction, factories and other facilities of the national economy.
For 19 centuries of our era in the world disappeared 150 species of mammals, mostly large, and 139 species of birds. Each extinct species — a very tangible and irreplaceable loss.
Man learned a lot: escaped into space, flew to the moon, but he will not be able to re-create the tour or Steller's sea cow. All that disappears in the animal world — disappears forever.
In the world of established environmental and other big days — World Environment Day, celebrated on June 5, The International Day for the Preservation of the Ozone Layer, celebrated on September 16, World Animal Day, celebrated on October 4, and others.
A September 15, 1971 was created an environmental organization "Greenpeace».