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Tips and Techniques
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What Do Trees Do?Besides providing us with beautiful wood for carvings, that is. Trees do so many thing that many serious carvers and woodworkers deliberately seek out wood from sustainable sources so as not to contribute to losing the world's forests. Trees sequester carbon dioxide and in doing so help reduce the greenhouse gases that contribute to global warming. Forests absorb about one-fifth of the world's carbon dioxide output. They also absorb sulfur dioxide (from burning of coal), hydrogen fluoride (from steel and fertilizer plants), and chlorofluorocarbons (released by refrigeration and AC units). Trees prevent erosion and purify water. Trees act like gigantic sponges, helping regulate runoff and flooding by gradually absorbing and releasing water. When roots no longer draw water and anchor the soil, when canopies no longer soften the impact of rain and wind, erosion and other consequences are inevitable. Trees help moderate temperatures. Three mature trees shading a house can cut air conditioning costs by up to 50%. Planted as a windbreak alongside a house, a row of trees can also reduce heating bills in colder climates by up to 20%. Trees are a vital fuel source. Trees are literally a matter of life and death in less developed parts of the world. Wood is still the primary source of heat and cooking fuel for 2 billion people; wood shortages affect about half of these people. Trees are supreme manufacturing plants. One source maintains that over its fifty-year life span one tree generates over $30,000 worth of oxygen, provides $62,000 worth of air pollution control, recycles $37,500 worth of water, and controls $31,250 worth of soil erosion. Another study shows that trees add an average of $9,500 to the resale value of a house. Yet another study shows that hospital patients with a view of trees out their window recovered faster and with fewer complications than those without such views. From A Splintered History of Wood by Spike Carlsen, pages 351-352. | |
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