In the past, the major need of people in this world was arable land. Man did not have to think about animate things. However, now the adverse effects on forests through over-population and the development of various chemical elements in the atmosphere have led to irregular rainfall and global warming. This global warming has brought changes in climate, including making perennial snow mountains melt, thereby adversely affecting not only human beings but also other living species.
This dangerous situation is being taken very seriously by the world. In the past the perennial snow mountains of Tibet had very thick snow. Older people say that these mountains were covered with thick snow when they were young and that the snows are getting sparser which may be an indication of the end of the world. It is a fact that climate change is a slow process taking thousands of years to realize its effect. Living beings and plant life on this planet also undergo change accordingly. Man's physical structure too changes from generation to generation along with the change in climatic conditions.
Because of the growth in the population, a large number of trees are cur for fuel, and to reclaim land for agricultural cultivation. In the case of Tibet, too, the Chinese have now destroyed its ancient trees in a similar way to shaving a man's off. This is not simply the destruction of trees but it also means harming what belongs to the Tibetans. Similarly, the continuing decline in forests in many parts of the world, including America, is adversely affecting the already changing global climate, thus upsetting the lives, not only of mankind, but also of all living beings.
