Forestry planning is essential if the global trend toward deforestation is to be reversed. World forest trends, although often based on inaccurate or misleading information put out by national governments, indicate that the area of land covered with closed forests has decreased from about 25% in 1950 to about 20% in the 1970s. Major causes of…

A key question to ask in determining whether a solution will be found to the current worldwide destruction of plant and animal life is whether people will learn to reconcile effectively the demands of environmental conservationists and developers. Probably the most immediate threat which ecological destruction poses to human welfare is shrinkage…