Wednesday, March 25, 2009

Global warming

Global warming is an important ecological issue that has many negative effects upon our environment. Global warming, or what has been called the Greenhouse effect, is the result of a fourfold ecological process.
In the first place Sunlight radiates from the sun, through space, to Earth’s atmosphere when this the sunlight enters the atmosphere and hits Earth. Some of it turns into heat energy in the form of infrared light. Next the heat gets absorbed by surrounding air and land, which in turn makes it warms. Then the Infrared rays that are remitted into the atmosphere are trapped by greenhouse gases. Finally the gas then absorbs the light and is remitted back to the Earth’s surface and warms it even more. Left on its own this natural process keeps our planet warm enough for habitation. However with the increases in temperature, caused by modern industry, our current way of life could become threatened.

In conclusion, I think we should decrease using green house gases and search for other power sources.