全球变暖带来的影响（The impact of global warming）
Effect of.Txt38 global warming when the clouds covered the sky, the pessimist sees the "dark pressure to destroy" the optimist see is "energy-saving Linkai". No matter what bad luck, just keep optimistic attitude, always find this strange strawberry. The impact of global warming in November 25, 2009 [14:40] and [Print] a total of 0 comments 1. the climate becomes warmer, melting glaciers, sea level will rise, causing coastal wetlands, mangroves and coral reefs and other ecological groups loss, coastal erosion, global warming can be afraid of the consequences, seawater intrusion in coastal underground freshwater, coastal land salinization, resulting in coastal estuaries and bays, natural ecological environment imbalance, bring disaster to the coastal ecological environment system.
2. water area increased. Also more evaporation, prolonged rainy season, floods are becoming more frequent. The chance of flood increase, the degree and severity of storm impact increase, and the dam life is shortened.
3. water temperature may give Antarctic Peninsula and Arctic ice melting. Polar bears and walruses will die out.
4. many islands will Not the least trace was found. malaria and other infectious diseases;
5. because there are thermal inertia, the existing greenhouse gas will also continue to affect our life."
6. temperature will affect the person's birth, the activity of sperm decreases with the increase .
Impact on climate
With more carbon dioxide and greenhouse gases emitted into the atmosphere, no one can tell exactly how serious it will be in the future Scientists are estimates of hazards posed by climate change. According to the current technical level, the mechanism of carbon dioxide formation and digestion in the atmosphere can be clarified in 2004, so that the greenhouse effect can be found. 2006 can be accurately predicted result of global warming and sea level rise. But really understand it all until 2050. Obviously, scientists and politicians are not going to wait until the results of further to take preventive measures, the observation and research results should let the public understand that not only make people have to swallow the bitter fruit after 50 years.
Since the greenhouse effect since the formation of the earth, it has been in effect. Without the greenhouse effect, the surface of the earth would be so cold that the temperature would drop to 20 degrees below zero, and the oceans would freeze and life would not form. Therefore, we are not faced
with the problem of greenhouse effect, but the human through the burning of fossil fuels a lot of greenhouse gases into the atmosphere, causing the greenhouse effect and global climate changes took place in the problem.
The greenhouse effect will produce what kind of impact? Due to the combustion of fossil fuels and massive deforestation, resulting in the increase of the concentration of carbon dioxide in the atmosphere of the earth, because of greenhouse
gases such as CO2, in the past 100 years, the global average surface temperature has increased by about 0.3 to 0.6 DEG C, to 2030 is expected to rise 1 to 3 degrees.
When the world's average temperature rises by 1 degrees, huge changes will happen: sea levels will rise, mountain glaciers will recede and snow areas will shrink. As global temperatures rise, uneven precipitation will occur, precipitation increases in some areas, and precipitation decreases in other areas. In the West African Sahel region in 1965 after severe drought; North China from 1965 onwards, the rainfall years, compared with 50s, now the precipitation of North China has been reduced by 1/3, the water resource is reduced by 1/2; China's drought stricken area of about 400 million acres per year, normal year national annual 30 billion cubic meters of water irrigation area city, 6 billion cubic meters of water.
As temperatures rise, in the past 100 years, the global sea level by 1 a year -- a rate of 2 mm in 2050 is expected to rise, the sea level will continue to rise from 30 to 50 cm, which will be inundated large low-lying coastal land; in addition, due to climatic changes, drought, low temperature and other climatic disasters intensified, causing hundreds of billion more than dollars in economic losses each year in the world.
Glacier melting
In recent years，imported food
Glaciers in the the Alps region, from Patagonia to Switzerland, have been observed as a result of greenhouse gas emissions and
melting of Antarctic glaciers that are generally believed to accelerate the greenhouse effect. In South Asia, the problem is not whether glaciers are melting, but the melting speed? Although many adverse effects of global warming may be at the end of twenty-first Century will become very serious, but in Nepal, India, Pakistan, Bhutan, China and glacial meltwater may soon cause trouble to the people.
A study by the International Commission on ice and snow (ICSI) pointed out that "glaciers in the Himal
ayas are retreating more rapidly than any other part of the world.". If the current melting rate continues, the possibility that these glaciers will disappear before 2035 is very large". Said Hasyn, head of the International Commission on ice and snow, said, "even if glacier melt dries up in 60 to 100 years, the extent of the impact of this ecological disaster will also be astonishing."
Glaciers in the Himalayan region of Shandong in the Ganges RIver valley are most seriously melting, and glaciers that have never been found in Kashmir, the fastest on the roof of the world, are retreating most rapidly. The 3 mile long g Barnabas glacier as an example, the glacier is one of the many glacier 40 million - 50 million years ago the India subcontinent collided with mainland Asia and, since 1990, it has retreated half a mile. After the cold winter in the subarctic region of the 1997, scientists had expected the glacier to expand, but it retreated further in the summer of 1998.
Disease rage
Harvard University Institute of disease and recurrence of
disease by Paul. Positan noted that plants with mobile world snowline, mountain plants are on the move. As the peak of the mountain warms up, the environment at high altitudes is increasingly favorable to the survival of mosquitoes and the microbes they carry.
Siniro virus, malaria, yellow fever and other tropical diseases since 1987 in the United States of Florida, Mississippi, Texas, Arizona, California and Colorado and other places have repeatedly confirmed the outbreak, experts on climate warming, some tropical diseases will spread to the area of cold scientific inference.
New ice age
About global warming and another results are even more surprising, from the Arctic ice melt, rainfall, and changing the type of wind, a large amount of fresh water into the North Atlantic is, resulting in the destruction of Mexico Gulf stream. It is these warm currents that warm the surface water from the Caribbean kelp to the northwest of Europe, and make Europe warm. But the Mexico warm current once due to global warming after being cut, the temperature of northwest Europe may decline of Europe may be 5-8 degrees, facing a new ice age!
The study was conducted at the Scotland Oceanographic Laboratory in Aberdeen and analyzed the results of more than 17 thousand times of salinity measurements between and 1893 in the waters between the blue islands and the Faroe islands. In the past 20 years, the salinity of the deep water flowing to the South has become smaller and lower, indicating that more