2. The effectTropical rain forests in the world continues to decrease. Does it really make a difference? Why everyone should care if some plants, animals, fungi, microorganisms perish? Tropical rainforests are usually hot and humid, difficult to reach, insects, and have elusive wildlife. Actually the concern is not about losing a few plants and animals, humanity suffered more loss. By destroying the tropical forests, we have our own risk, quality of life, gamble with the stability of climate and local weather, threatening the survival of other species, and undermine the valuable service provided by the biological diversity. An area of the forest is lost every year as increasing 6 billion tons of CO2 causing greenhouse effect, fold the 3.6 times the emissions caused by power plants and other industrial plants in the European Union's emissions into the atmosphere by 2010 according to emissions credit programs of the Kyoto Protocol on climate change.The study of UNEP identified the forest can support keeping the Earth's temperature does not rise more than 2 degrees Celsius, a temperature increase of safety to climate change does not threaten human life at the end of the 16th century, if reduced 50% of lost forest area by 2030. To meet this goal, the world needs to start from 17-33 billion dollars per year for planting forests and restore the lost forest area. The value of the forest carbon markets have the potential to rise to 10,000 billion USB in 2020, while the total value of goods and services from forest ecosystems on about 5,000 billion. So far, this huge potential remains largely untapped efficiency. While in most areas of environmental degradation still has not reached a crisis level where the whole system is narrow, it is important to consider some of the implications of the current poverty and environmental prediction some of the consequences of the loss of money. Continued loss of natural forest systems could make human activities increasingly vulnerable to the natural ecology in the future. The most direct impact of deforestation occurs at the local level with the loss of ecological services provided by tropical rain forests and related ecosystems. The living environment of human beings thus afford valuable services such as erosion prevention, flood prevention, water treatment, protection of fisheries, and pollination, the function was particularly important for the poorest people in the world, the ones on the Zen of natural resources for their daily life. Forest loss also reduces the availability of renewable resources such as timber, medicinal plants, fruits and seeds of the species. In the long run, deforestation of tropical rain forests could have a broader impact, affecting global climate and biodiversity. These changes are more difficult to observe and forecast due to the impact of local, since they take place over a longer time scale and hard to measure. The tropical forest is the Habitat of over half the species of animals and plants on Earth. However, scientists predict that the combination of the impact of climate change and deforestation could force them to adapt, move to another place or die. By the year 2100, climate change and deforestation activities can change 2/3 of the tropical forest in Central America and South America, 70% of tropical forests in Africa. The Amazon River at the rate of change of the ecosystem will be up to 80%. The results showed that only 18% of the total 45-animals and plants in the tropical forests also exist by the year 2100.
đang được dịch, vui lòng đợi..
