Of Michigan's great wealth of natural resources, few have been more important in the past or are more highly valued today than our forests and the trees which compose them. Not only are they a continuous source of raw materials for industry and agriculture but they affect the climate, water resources, and soil, purify our air, furnish food and shelter for wildlife and are indispensable to our vast recreational and scenic areas. They form a basic part of our diverse natural environment - our ""biodiversity."" Their protection and management are vital to the state's wellbeing. Industries which depend upon trees for their existence are major employers and rank high in the state's economy. The annual production and manufacture of forest products is measured in billions of dollars. The recreation ""industry,"" including vacation travel, resorts, food, lodging, hunting, fishing, and camping, is likewise a multi-billion dollar a year business. Equally important is the intangible wealth which trees bring to us through sheer enjoyment of beauty and love of nature. Whether in field, fencerow, woodlot or forest, or along highways, rural roads, urban streets, or greenbelts, this bounty is ours for the taking. We have only to picture ourselves without trees to appreciate this value.