Although carbon dioxide is said to be the cause of more than 60% of global warming, there are other substances which cause global warming as well, including methane, chlorofluorocarbons, and nitrous oxides. Did you ever asked yourself why the earth is heating up? Some may say it is a natural phenomenon, others may claim that man made the changes. As a matter of fact, natural causes and human activities are the factors which influence global warming.
Studies claim that billion years ago, long before man exists, there is already a warming of the planet. One of the natural cycles which believed to cause the rise of temperature is the sunspots cycle. For instance, explosions of the sun’s surface produces heat which can hit the earth causing intense temperatures. Another natural factor believed to affect global climate is the earth orbit and tilt.
Any changes of the earth orbit can cause the planet to move closer or farther from the sun. Therefore it is one of the culprits for global warming. Evidence proved that plate tectonics caused poles to be isolated from warm ocean currents. Thus it can affect our climate. Furthermore, another natural factor for global warming is the release of methane gas from wetlands and arctic tundra. One example of greenhouse gas involved in global warming is methane.
Although greenhouse gases occur naturally to keep the Earth temperature stable to maintain life, human activities increase the concentration of these gases in the atmosphere. As concentration of greenhouse gases in the atmosphere increases, the atmosphere is capable of absorbing more heat. As a result, the earth tends to warm up. In this case, man is believed to be a factor for global warming. The rise of Industrial Revolution dramatically increases the concentration of Carbon dioxide and other greenhouse gases in the atmosphere at rates much faster than the earth can cycle them.
Transportations, factories, electricity from coal-fired power plants produce carbon dioxide and other heat-trapping gas in the atmosphere. Cutting down trees is another significant source of greenhouse gases, because fewer trees mean less conversion of carbon dioxide to oxygen. In addition, research shows that burning wood and fossil fuels such as gas, coal, and oil contributes carbon dioxide; methane is released from livestock and coal production; and agricultural and industrial processes produces nitrous oxide.
|
|
David Evermon has been involved in many environment related projects, writing on many subjects related to the environment and project management his hobbies and knowledge of construction, David writes articles about Causes Global Warming and the fight for the planet.
Pollution in the Modern World Leads to Modern Problems
By Paul Kennard
In this modern world as scientists produce new technology for the welfare of mankind it only results in new luxuries being produced. This attitude by people towards the environment is changing because they want more and more luxuries and they are destroying the environment for this reason.
They use instruments like fridges, air conditioners etc that release C.F.C’s in the environment which in turn deplete the Ozone layer but these gadgets not used before the 19th century, according to recent researches the depletion of ozone has increased by about 50% in the 20th century. The uncontrolled deforestation to built buildings for their own accommodation is increasing the oxygen content in the atmosphere, which is leading to global warming. The increasing riots also increase pollution as many cars are set on fire during the riots. This increases the temperature of that place as well as the global temperature; wars are also producing much type of pollutions like air, water, land, noise and radiation. The testing of missiles produce toxic radioactive gases like Radon, Xenon, So2 ,Co etc.
The increasing use of plastic bags leads to the pollution of the land and the sea. These plastic when buried in the earth do not decompose and convert that land into bad land not suitable for agriculture; throwing these plastic bags into the sea kills the fish. The use of loud speakers at late night parties, marriages Noise come from all over the place. Noise from road traffic, jet planes, jet skies, garbage trucks, construction equipment, manufacturing processes, lawn mowers, leaf blowers, and boom boxes, to name a few, are among the audible litter that are routinely broadcasted in the air or from road traffic, jet planes, jet skies, garbage trucks, construction equipment, manufacturing processes, lawn mowers, leaf blowers, and boom boxes lead to increase in sound pollution which have many harmful effects like disturbance in sleep, deafness etc.
At the end I would like to say that if this trend of modernization continues we will ultimately change the earth into a place, which will be full of pollution and unsuitable for flora and fauna.
|