The tree, as the central form, represents the forests of this Earth in all their variety and diversity: ranging from boreal coniferous forests to deciduous forests in temperate zones and from the dry savannah forests of the subtropics to the impenetrable jungle of tropical rain forests. 2. The tree trunk supports the rest of the logo – emphasizing that trees are the distinguishing feature of the forest ecosystem and are the basis for many of the pivotal functions that forests fulfill. Indeed forests and their services represent an essential basis for the livelihood of more than a billion and a half people around the world. In many regions, forests are a key basis for sustainable development. The trunk also represents wood, the most environmentally friendly raw material, so relevant for a greener and more sustainable economy. Wood is equally important as a source of energy: In many developing countries wood is the main source of fuel for cooking and heating, and in industrialized countries wood is increasingly used as a clean and renewable source of energy. About 60 percent of the wood removed from forests and trees outside forests is used for energy. 3. We humans may consider ourselves to be at the centre of creation, yet we are also an inextricable part of nature. The varied icons surrounding the human symbol reflect the close link between humans and forests and the many ways people use and benefit from forests. As we use the forests, we also have a duty to conserve them. And for many civilizations, trees and forests are central to cultural and spiritual life, which is what makes us uniquely human. 4. Water Forested watersheds are the reservoirs of the world. Forests have an essential role in stabilizing water supply and ensuring its purity. They protect the soil from erosion and stabilize drainage. They filter sediments and pollutants, influencing water flows and quality. Forests play a central role in local water cycles, absorbing water, storing...
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