口语文档

I think 2012 is the end of the world. Now the Earth's environment has been severely damaged, all kinds of disasters is also increasing.

For example, damage to soil, air pollution, threats to freshwater, climate change and energy waste,

forest reduction, biodiversity reduction, chemical pollution, chaotic urbanization, over-exploitation of

marine pollution and coastal zone, polar ozone hole.

At present, there are 110 countries arable land, fertilizer level decreased. In Africa, Asia and Latin

America, due to the disappearance of forest vegetation in the excessive development and

overgrazing of pastures, cropland, soil erosion is very serious.

Greenhouse effect a serious threat to mankind as a whole, according to the 2,500 representative experts expect, sea level will rise. Elevated temperatures will bring serious consequences to agriculture and ecosystems.

Urbanization, agricultural development, forest decline and environmental pollution, bio natural

areas are getting smaller and smaller, which led to thousands of species extinction.

Population explosion and the degradation of land in rural areas, poor third world millions of peasants have left the countryside, clustered in the big city. With the advent of the new century, and some big city living conditions to deteriorate further.

Earthquakes, wildfires were beyond the control of the human disaster, but some of the world's most deadly disaster is almost always caused by ourselves. Pursuing energy, food, and enjoy, have almost destroyed the Earth. Despite the excessive fishing and hunting and