Tkink green,live green! a essay about the main...

THINK GREEN,LIVE GREEN We are now confronted with serios enviromental problems.The best way to fight them is by knowing what causes them and to figure out the best comprimise solution for the earth as well as for the humans. population growth The major cause of most environmental problems is the rapidly growing human population, now at 6 billion (2000 estimate) people worldwide. A quarter of a million babies are born each day-90 million each year. In another 50 years, the population will grow to about 9-10 billion. Meeting the basic needs of all these people- food, housing, heat, energy, clothing, and consumer goods-places tremendous demands on the earths natural resources Without technological and land-use changes, in addition to†¦show more content†¦Education campaigns encourage people, businesses, and governments to prevent the inadvertent transport of foreign species, to control existing exotics, to restore degraded ecosystems, and to undertake any future introductions with the utmost care. Human welfare, after all, depends on preserving biodiversity. Through their mixing of species and disruption of ecosystems, human beings imperil themselves. desertification Desertification is the process by which lands that lie at the margins of deserts are degraded and become deserts themselves. Desertification usually occurs due to overgrazing, poor farming techniques or deforestation . The removal of the natural vegetation exposes the soil to wind erosion soil erosion and exhaust The main cause of soil erosion is deforestation.Deforestation occurs when forests are cleared or destroyed. It results in the loss of animal habitat , as well as increased soil erosion due to the loss of protective vegetation cover. In some areas, because the nutrient-deficient soil cannot support crops, a wasteland results within a few years. deforestation Each year an estimated 170,000 square kilometres (66,000 square miles) of rain forest disappear, the equivalent of more than four times the area of Switzerland . At the current rate of destruction, the worlds lowland rain forests will have disappeared in 20 years time. Today,