From the 1890's until the mid 1900's, wood was the primary fuel for residential, commercial, and transportation uses. For some time after, alternative fuels, such as fossil fuel were used to replace the slowly, diminishing forests. In Canada and the U.S., wood is used as fuel in two distinct applications. Wood wastes from the forest products industry, and many homeowners use wood as a primary or secondary source of home heating. In recent studies, acid rain and global warming have resulted in a search for demand for wood, which is a renewable resource.
Throughout history, the fate of the world's forests has strongly reflected the pattern and intensity of land use by societies. Demand for agricultural land, timber, and other forests products significantly impact the mode and rate of transformation of forest areas. Deforestation is when many trees are cleared from a large area. This results in the killing of thousands of species of animals, which are adapted to their environment.
Global warming, which is caused after the trees have been cut down occurs when CO is released back into the atmosphere (increasing the tree house effect.) Another effect of deforestation is erosion, which is caused when trees are clear-cut because there are neither roots to hold the soil in place or vegetation to lessen the impact of hard rain on the soil.
The tropical rain forests are most affected, but temperate woodlands are also at great risk. About 1,113,000 hectares of forest in Brazil and 989,000 hectares in Canada were destroyed in 1995. British Columbia has a bout 40% of it's original forests remaining, while Europe has less that half left. The United States had about one to two percent of their original forest cover. Recent studies by the World Resources Institute have shown that more that 80%...