Global Warming is increasing the earth's average temperature. The Green house gases are the main reason of the global warming. The green house gases like carbon dioxide, methane, and nitrous oxide are playing hazards in the present times. These green house gases trap heat in earth's ate is the power plants.* These power plants emit large amounts of carbon dioxide produced from burning of fossil fuels for the purpose of electricity generation. Coal is the major fuel that is
burnt in these power plants. Coal produces around 1.7 times as much carbon dioxide per unit of energy when flamed as does natural gas and 1.25 times as much as oil. The coal gives out eighty percent more carbon per unit of
energy it produces as compared to natural gas. Another major source of carbon dioxide in the atmosphere is the emission from the cars and other vehicles. About twenty percent of carbon dioxide emitted in the atmosphere comes from burning of gasoline in the engines of the vehicles. This is true
for most of the developed countries. Moreover if sports bike and vehicles that are essentially designed for rough terrain, emit more carbon dioxide when used for general purpose on roads. It is always better to use vehicles designed for city driving on the city roads.
*Buildings, both commercial and residential represent a larger source of global warming pollution than cars and trucks.* Building of these structures require a lot of fuel to be burnt which emits a large amount of carbon dioxide in the atmosphere.
*The second major greenhouse gas after carbon dioxide, which causes global warming, is Methane.* Methane is more than *20 times* as effectual as CO2 at entrapping heat in the atmosphere. Methane is obtained from resources such
as rice paddies, bovine flatulence, bacteria in bogs and fossil fuel manufacture. Almost in all parts of the world, rice is grown on flooded fields. When fields are flooded, anaerobic situation build up and the organic matter in the soil decays, releasing methane to the atmosphere.
Nitrous oxide, which is a colorless gas with a sweet odour, is another green house gas. The main sources of nitrous oxide include nylon and nitric acid production, cars with catalytic converters, the use of fertilizers in agriculture and the burning of organic matter. Greater emissions of nitrous oxides in the recent decades is leading global warming
*Another major cause of global warming is deforestation. Deforestation is to be blamed for 25% of all carbon dioxide release entering the atmosphere, by the cutting and burning of about 34 million acres of trees each year.* Trees collect the CO2 that we breathe out and give away from various other
sources, and they give back oxygen that we breathe in. Thus, cutting of trees is leading to greater concentration of carbon dioxide in the
atmosphere. Greater urbanization, requirement of land for factories and buildings, requirement of timber are all reasons that are leading to deforestation, which in turn is leading to global warming. Greenhouse gases are the ingredients of the atmosphere that add to the greenhouse effect. Some greenhouse gases are present naturally in the
atmosphere, whereas few green house gases a consequence of human activity. The greenhouse gases that are present in the atmosphere naturally include water vapor, carbon dioxide, nitrous oxide, methane and ozone. There are a few human activities, which increase the levels of most of these naturally
occurring gases. The concentration of various green house effect gases has substantially increased in the recent times.
Greenhouse gases, which are the major cause of global warming, trap heat in the earth's atmosphere. Since the middle of the 19th century, human agriculture and industrialization have dispensed an enormous quantity of these green house gases into the atmosphere, where these have trapped enough
heat to begin climate change. According to the United Nations, there has been a rise of about 0.6 degrees Celsius during the past century. More warming is expected to occur in the coming decades
The main reasons for the emission of gases that are a cause of green house effect are burning of fossil fuel like coal in the power plants for the purpose of generation of electricity. Fossil fuel burning leads to high emissions of carbon dioxide gas. Another green house gas is methane. Methane is more than 20 times as effectual as CO2 at entrapping heat in the
atmosphere. Methane is obtained from resources such as rice paddies, bovine flatulence, bacteria in bogs and fossil fuel manufacture. Almost in all parts of the world, rice is grown on flooded fields. When fields are flooded, anaerobic situation build up and the organic matter in the soil decays, releasing methane to the atmosphere. Nitrous oxide, which is a colorless gas with a sweet odor, is also a green house gas. The main sources of nitrous oxide include nylon and nitric acid production, cars with catalytic converters, the use of fertilizers in agriculture and the burning of organic matter. A greater emission of nitrous oxides in the recent decades is leading global warming. Another jump in the category of green house gases is in the name of hydroflourocarbons and perflourocarbons, man made chemicals initiated as a substitute to other chemicals that deplete the atmosphere's protective ozone layer.
The speedy increase in greenhouse gases over the past century is a matter of worry in at least 800,000 years, according to a study of the oldest Antarctic ice core. Scientists at the British Antarctic Survey (BAS) in Cambridge have established the fact that there have been eight cycles of
atmospheric alterations in the past 800,000 years when green house gases like carbon dioxide and methane have risen to high levels. Each time, the earth also had a comparatively high temperatures linked with warm; inter glacial periods, which were most certainly associated with levels of carbon
dioxide and probably methane in the atmosphere. However, present levels of green house gases are much higher than everything seen during those previous
warm periods.
Although much is being done to reduce the emission of these green house gases, but the efforts are still not enough. An international agreement called the Kyoto Protocol has been made among the various nations to cut down the emission of these gases. There is an urgent need that each one understands the bad effects of these green house gases and does the need
