Food and Agricultural organization of the United Nations (FAO) supported the idea of carrying International Day of Forest. It was a cause of sharing information with society about the importance of forest maintenance. It was decided to celebrate this Day every year on 21st of March- in the day of autumnal equinox in southern hemisphere and the vernal equinox in northern hemisphere.
The main idea of International Day of Forest is to raise the familiarity of citizens of the world about the importance of forest’s ecosystems, their real condition, main ways of protection, rehabilitation and recovery. Biologists noticed that reduction in area of forestry leads to negative process which has the global meanings: soil erosion, reducing variety of plants and animals, degradation of water reservoirs, increasing of carbon dioxide in the atmosphere, reducing of quantity of industrial and low-grade wood, and finally reduction of human life and action.