global warming

What is Global Warming?
Global warming could be interpreted as an event menghangatnya surface during some period of time. This is a normal natural phenomenon actually. If you do not get warm temperatures on Earth could be freezing cold as the ice age that occurred 15,000 years ago.
Warming on Earth's surface known as the Greenhouse Effect or Greenhause Effect. This process starts with sunlight menenmbus air layer (atmosphere) and heat the earth's surface. the earth's surface to heat warms the air that was directly overhead. Because of the mild, hot air rises and is replaced by cool air. Some of the hot air that rises to the arrest and reflected back on the surface by a layer of gas on Earth atmosffer consisting of carbon dioxide, Methane and sodium oxide. Which reflected the heat is working to maintain the temperature of the Earth so as not to be frozen. The process reflecting heat to warm the Earth is called the greenhouse effect. because the natural processes that normally becomes unhealthy since humans entered the industrial process. At this time humans began burning coal, oil and natural gas to produce fuel and electricity. Enargi combustion process of this Earth was to produce emissions of carbon dioxide gas.
so global warming is happening because of human actions do have negative effects that can not be considered trivial. and we too, like not, recorded as the culprit. Try starting now we change habits that can reduce carbon dioxide gas kada so as not to exceed the threshold. how? enough electricity use as needed, mmemeilih appliance or electronic energy-saving, and if I can plant trees to absorb carbon dioxide gases in the air.