How are human being are harming the environment?

Answer:The human impact on the environment has been documented by credible scientists for hundreds of years. Examples are: 1. Habitat destructionIn both the Amazon Rain Forest and other natural areas of the world over logging and conversion of forests to agriculture has resulted in the loss of native habitat for numerous plants, birds, animals and insects. This is a major reason of extinction in most species. 2. ErosionErosion of topsoil by wind and water caused by poor farming practices has stripped tons of fertile soil from the land. This has led to conditions such as the great dust bowl in the USA in the 1930s 3. Global warmingWith the exception of a very limited number of scientists the world wide community of scientists has recognized that man made emissions of green house gases has altered the worlds climate. This has already led to species transference, loss of habitat in the north, and an upward spiral of methane (a powerful greenhouse gas) being emitted from the permafrost in Siberia and Canada. Predicted and observed impacts may include drought, famine, changes in ocean currents and a cooling in Europe. 4. Acid PrecipitationThe emission of sulfur and nitric oxides from ore smelting and coal burning changed the soil and water pH in much of Europe and North America with the degradation of forest and lake biota. 5. Species extinction and IntroductionHuman activities have introduced several new species in to the environments locally (Zebra Mussels, fire ants, killer bees, starlings) which cause harm to the local human population and local (native) plants and animals. The near extinction of the bison and cod fish and the extinction of the dodo, geat auk, and others by direct human intervention 6. Human Health ImpactsPhotochemical smog, sulfur dioxides, Mercury emissions, chlorinated hydrocarbons have all been shown by epidemiological studies to increase human death rates.