Global Warming

The global warming is caused by the air pollution, or greenhouse gas. Greenhouse gas is including water vapor, carbon dioxide, methane, ozone, nitrous oxide, and chlorofluorocarbons. Initially the greenhouse gas can absorb the solar energy so that the earth temperature keeps about 15℃ and provide the suitable environment for creature live and survive. If the earth surface don’t have any greenhouse gas, the earth temperature will drop down -18℃and nothing can live or cause the big change in the world.

Now the human produce and release much greenhouse gas for industry than the sum since thousands of years. Greenhouse gas causes the weather become more and more unstable, the temperature higher and higher, the disaster caused by wind and weather will stronger and stronger, etc. This unusual weather brings about many disasters such as food shortage, strong tornado, raise sea level and sink many islands, etc.

Face the global warming what can we do? Basically, we can reduce the C pollution, for example, we can turn off the electric equipments when we don’t use.

On food, we can eat more vegetable and less meat. The 40 percent of the grain are used on forage. Now anybody and news always report that we are in the trouble of food shortage, we should find new ways and techniques to produce more food. Why? We have to look for so difficult methods and techniques to break this predicament. The easiest and most useful method is that eat vegetable. When we eat 1kg of beef, the cattle eat 16kg of grain, cause the 35kg of land surface erosion, deplete 100,000 kg of water, and the methane from cattle can speed up the global warming, that is faster than carbon dioxide on 20 times.

So now we should make some change on life, or more disasters are waiting for us, if we don’t do any useful change.

Relatative website:
Wikipedia http://en.wikipedia.org/wiki/Global_warming
Al Gore, An Inconvenient Truth http://www.climatecrisis.net/