Global warming and greenhouse gas

Global warming and greenhouse gas

Global warming due to the increase of carbon dioxide in the atmosphere has become a problem.
Prevention of global warming in Kyoto Conference (COP3), of this carbon dioxide
Has been discussion about reducing emissions.
However, the gas heats the earth villain, greenhouse gas, ie,
There are some other than carbon dioxide.
They are, methane, nitrous oxide, CFCs, etc..
Mechanism of these gases warm the earth, is as follows.
Energy coming from the sun fell on the earth is in the form of electromagnetic waves.
Looking at the long wavelength side by side in order of electromagnetic waves, radio waves, infrared, visible light,
Will be ultraviolet, line X, and the line γ.
Energy of electromagnetic waves, it is large enough to shorter wavelengths.


Large part of the electromagnetic radiation from the sun is visible light and ultraviolet light.
Greenhouse gases in the atmosphere, and passes these on the ground most of the electromagnetic wave.
Amount of energy Earth receives the energy of these, the earth has received
Then released into space from the surface of the Earth, the infrared wavelength is longer decreased.
Greenhouse gas, has a nature to absorb these infrared,
Have played a role in insulating the atmosphere.
Prevents the chill off the earth to act reasonably and the greenhouse effect,
Kept to about 15 degrees Celsius average temperature, vital activity becomes possible.
When you increase the greenhouse effect, the temperature of the atmosphere is on the rise but will.


Well, let's look at the profile of the gas of the villain.
Methane is the main component of natural gas and coal gas, is colorless and odorless.
It also occurs from the dump.
Nitrous oxide is a colorless gas faintly sweet-scented, has the effect of a good lung,
It is also called "laughing gas" for face to inhale and convulsions.
Freon is also known as a gas that Deplete the Ozone Layer.
These gases, it is large greenhouse impact is characterized.
Methane is about 25 times of carbon dioxide, nitrous oxide at about 320-fold,
Freon is reached in about 8500 times.
Being the "main culprit" of global warming is carbon dioxide,
Amount because the vast majority of its occurrence.


However, from now on, my eyes can not look aside from methane is likely.
Currently, methane than before the Industrial Revolution
It is said that about 2.5-fold increase.
You say that increased with the use of coal and natural gas.
Sources of methane can also be found in the other.
From paddy fields is the occurrence of such as cows and belching.
Methane from rice paddies mechanism to occur are as follows.
Rice to take root in the soil, the
Anaerobic bacteria to produce methane is lived.
If the ground is dry, so that the methane consumption by bacteria living on the surface of the soil,
Leaving to the atmosphere is unlikely.
In the paddy fields, this bacteria does not live inside of it has sunk in the ground water, however.
In addition, acts as a stem of rice straw,
Will put methane into the atmosphere.
Nitrous oxide, by giving the fertilizer also
To occur has been confirmed.
Also various sources of greenhouse gas
Going to focus has become necessary.