We are faced with common problems that is 3 the warming of the Earth, the pollution of the sea and the oceans with the desertification.The average temperature of the Earth hotter now near 40 degrees Celsius in temperature compared to the most recent ice age, about 13. 000 years ago. However within the last 100 years, the average temperature of the Earth's surface increased about 0, 6-0, 7 degrees Celsius and forecasts will rise 1, 4-5, 8 degrees C in 100 years.Global warming has profound effects on the environment and society. One consequence of the increase in the temperature of the Earth is sea-level rise, increasing the intensity of storms and extreme weather phenomena, ụzôn floor decline, change in the agricultural sector, and ụxy in the ocean.The speed of global warming in the XXI century, faster than the adaptation of organisms, so some species is likely extinct.Seas and oceans are called upon to rescue because of serious pollution. Every year, some 50 million tons of solid waste consists of sea sand, soil, waste, construction waste, radioactive material ... Besides, oil leak, the spill of the boats often constitute 50% of the oil pollution on the sea.Through the numbers speak here, we can see part of the consequences of sựô infection:-1. 000.000 seabirds, 100. 000 animal and Sea Sea macrochirus die due to choking or being entangled by the type of plastic trash.-30-50% of the amount of CO2 emissions from the process of burning the fossil fuels being the ocean absorbs, the change in temperature will affect the CO2 absorption ability of the adventure was born and then affect the ecosystem.-60% of coral reefs are threatened by the pollution.-60% of the Pacific coast and 35% of Atlantic coast are being eroded with the speed of 1 m/yearIf people see the length of the sea is a giant garbage can only contain enough waste, ocean environment will also be ruined even more severe, not only as the current status.Each year, the gradual advance of the Sahara to the South with the speed 45 km/year. Madagascar-highlands where considered the treasure of biodiversity, but 7% of the land is now relatively barren hill soil. In Kazakhstan, since the 1980s, 50% of the area of cropland has been abandoned because the lands in the desert húa process.Decreased biodiversity, land becomes silver color not cultivated are the two principal effects of the process of desertification. This situation is threatening the lives of the nearly 1 billion people on Earth. Africa can feed only 25% of the population by 2025 if húa desert speed in the black continent continues today.
đang được dịch, vui lòng đợi..
