UNANGST TREE FARMS plants between 7,000 and 8,500 seedlings each spring.  Most Christmas tree growers plant one to three new seedlings for every tree they harvest.  While the seedlings are growing they continue to support life by absorbing carbon dioxide and other gases and emit fresh oxygen.  Farms that grow Christmas trees stabilize soil, protect water supplies and provide refuge for wildlife while creating scenic green belts.  Real trees are a renewable, recyclable resource.  About 500,000 acres in production for growing Christmas Trees in the United States help preserving green space.  After the Christmas season, trees are used in ponds and lakes for fish habitats.  They are chipped down to make mulch and help prevent erosion on beach fronts during the winter months.  Eight percent of artificial trees worldwide are manufactured in China, according to the United States Commerce Department.  Artificial trees are petroleum-based product.  The average family uses an artificial tree for only six to nine years before throwing it away, where it will remain in a landfill for centuries after disposal!