Understanding
the greenhouse effect, greenhouse effect or the term in English is
called the green house effect is first derived from the experience of
the farmers who live in temperate climates who use greenhouses to grow
vegetables and flowers bungaan. Why do farmers grow vegetables in a greenhouse? Because the temperature in the greenhouse is higher than outside the greenhouse. The
temperature in the greenhouse can be higher than outside, because the
sunlight that penetrates the glass will be reflected back by objects in
the room as the greenhouse heat wave in the form of infrared light, but
the heat wave is trapped in the room and the greenhouse does not mix with the cold air outdoor greenhouse. That simple description about the greenhouse effect or shortened by the ERL.
then from the experience of farmers in the linked to what happens to the earth and the atmosphere. Atmospheric
layer consisting of, respectively: the troposphere, stratosphere,
mesosphere and thermosphere: The bottom layer (the troposphere) is the
most important in the case of the greenhouse effect or ERK. Approximately 35% of the solar radiation does not reach the earth's surface. Almost all short-wave radiation (alpha rays, beta and ultraviolet) is absorbed by the top three layers. The others scattered and reflected back into space by the gas molecules, clouds and particles. The remaining 65% goes into the troposphere. In
the troposphere, the 14% is absorbed by water vapor, dust, and certain
gases so that only about 51% are up to the surface of the earth. Of
this 51%, 37% is 14% of direct radiation and diffuse radiation that has
undergone scattering in the troposphere layer of gas molecules and dust
particles. Radiation received by the earth, some is absorbed partially reflected. Re-emitted radiation is absorbed in the form of infrared light.
Earth
reflected infrared light is then absorbed by the molecules of gas among
other form of water vapor or H20, CO2, methane (CH4), and ozone (O3). This
infrared heat rays trapped in the layers of the troposphere and
therefore the air temperature in the troposphere and the surface of the
earth to rise. Tempers Greenhouse Effect. Gases that absorb infrared light called abbreviated GHG GHG.
If no-ERK, the earth's average temperature would be around minus 180 degrees C - too cold for human life. With the ERK, the earth's average temperature is 330 degrees C higher, at 150 degrees C. so the greenhouse effect makes the earth's temperature feasible for human life.
However,
when the emission of infrared rays back trapped by CO2 and other gases,
the infrared light will bounce back to earth and the earth's
temperature to rise. Than in the 50's for example, the current temperature of the earth has risen about 0.20 degrees C over.
This
can occur because of changes in the composition of GHG (greenhouse
gases), the global increase in greenhouse gas concentrations due to
human activities, especially related to the burning of fossil fuels
(oil, gas, and coal) as in power generation, automotive, air
conditioning, computers, cooking. Besides
GHG is also produced from the combustion and deforestation as well as
agricultural and livestock activities, GHG generated from these
activities, such as carbon dioxide, methane, and nitrous oxide. above it is also one of the causes of global warming is happening right now.
