greenhouse effect

Greenhouse effect

All energy sources that exist on Earth comes from the Sun. Most of the energy in the form of short-wave radiation, including visible light. When it reached the surface of the Earth's energy, he changed from light into heat that warms the Earth. The surface of the Earth, will absorb some heat and reflect back the rest. Some of this heat tangible long wave infrared radiation into space. However, some heat remains trapped in Earth's atmosphere due to accumulated amount of greenhouse gases include water vapor, carbon dioxide, sulfur dioxide and methane into the trap this radiation wave. These gases absorb and reflect back the radiation waves emitted by the Earth and consequently the heat is stored in the Earth's surface. This situation occurs continuously resulting in annual average temperature of the earth continues to rise.

These gases function as a greenhouse gas. With the increasing concentration of these gases in the atmosphere, the more heat is trapped underneath.

The greenhouse effect is very much needed by all living things on earth, because without it, this planet will become very cold. With an average temperature of 15 ° C (59 ° F), the earth actually has more hot 33 ° C (59 ° F) from the original temperature, if there is no greenhouse effect the earth's temperature is only -18 ° C so that ice will cover the entire Earth's surface. However, on the contrary, if these gases in the atmosphere have been excessive, will cause global warming.