Global Warming Essay

Global Warming
Several activities in the world contribute to a considerable green house gases in the atmosphere which include; carbon dioxide, nitrous oxide, methane and others. The sun rays penetrates through these gases to reach the earth surface but since the rays are reflected in form of infrared rays, the accumulated green house gases blocks some of them allowing others to infiltrate and escape to the Space. The blocked infrared rays which are in form of heat contribute to the increase in temperature. Eventually the average temperature is increased which mostly concentrates on the atmosphere near the earth surface resulting to global warming.
Oceans and seas are also affected since they constitute a large reservoir of heat in which a lot of heat is absorbed and the sea level might also rise. Global warming effects take an extended period of time although it may result to diversified impacts globally. Nebeker, F. (1995) Argues that the reduction of green house gases would cause a proportional reduction in the global warming but the significance balance to both warming of the earth and cooling would demand more efforts which might be difficult to achieve. Therefore considering the negative consequences of global warming reasonable effort towards reducing the global warming is definitely crucial.
Globally, there are various activities that contribute to increase of global warming. These activities depend with the region and the diversified resources and the energy utilization. The most dominance green house gasses is carbondioxide consisting of approximately 76% of the total green house gases in the atmosphere. It results from burning of fossil fuels, carbon dioxide exhaled by human beings and other means. Vegetation Begin Match to source 1 in source list: Acumen PI- Title: Renewable Energy, Date: 2006-12-26contributes a lot to the reduction ofEnd Match the Begin Match to source 1 in source list: Acumen PI- Title: Renewable Energy, Date: 2006-12-26carbon dioxide which isEnd Match an important element in photosynthesis. Therefore increased deforestation and subsequent clearing of the vegetation Begin Match to source 1 in source list: Acumen PI- Title: Renewable Energy, Date: 2006-12-26contributes a lot to theEnd Match increase Begin Match to source 1 in source list: Acumen PI- Title: Renewable Energy, Date: 2006-12-26ofEnd Match green house gases.
Industrial activities and use of heavy machineries powered by fossil fuels plays a major role in the increased emission of the carbon dioxide. The resultant global activities towards the negative effects of promoting global warming therefore defines a significant impact which raises a global concern that requires a combined effort. Global warming has a side effect which affects the environment, productivity, society and human health in general. Focusing on the environment due to the change in temperatures both on the earth and the oceans. The change in climate is experienced. This in turn may affect the rainfall patterns and cause the wet or dry seasons to either lengthen or shorten. It is also experienced that the distribution of rainfall may be drastically affected which would also affect the agricultural production. Many crops fail to respond to the climatic change which affects the crop yield hence food distribution affected.
According to Houghton, J. (1997) a survey carried out on the effects of global warming indicates that the effect does not occur on vegetation alone but it also affects the breading of micro-organism and other organism. Most insects and micro-organisms increase their breeding in a warmer climate. This can be clearly supported by the fact that insects like mosquitoes which spread malaria a deadly disease in the world migrate and breed more in favorable conditions which consists a warm climate. This is mostly found to take place in areas with very low sea level which happens to be very warm compared to high regions. This suggests that the global warming causes the increased diseases to human health.
With most of the heat being absorbed by the sea and oceans, they eventually expand and rises causing tremendous impact to most people who live near them. Displacement of people takes place and forces them to squeeze in other regions which posses a major threat of disease outbreak like cholera and typhoid. This is mostly common in poor nations with less resource to depend upon. In other cases people experience hunger which affects their health so much. Human body requires a considerate and appropriate temperature to function normally and maintain the required health. Extreme cold is harmful to human body as well as extreme heat. Global warming affects the human body Begin Match to source 2 in source list: http://www.csls.ca/events/oct98/devl.pdfas a result of increasedEnd Match heat which affects Begin Match to source 2 in source list: http://www.csls.ca/events/oct98/devl.pdftheEnd Match functioning Begin Match to source 2 in source list: http://www.csls.ca/events/oct98/devl.pdfof theEnd Match body and may also cause some disease like heat stroke and other diseases resulting from an increased temperature.
Heat affects some organic processes like decaying fermentation. This is as a result of increased level of bacteria which multiplies more in warm condition. Further rate of decay of organic materials generates some strange bacteria which are responsible for human disease. Increased heat facilitates decomposition of dead organism which affects the environment by increasing the pollutant which is harmful to human health.
Increased temperatures in the ocean and seas is also considered to harbour some strange algae and other strange bacteria’s which mostly affects people who live along the sea side and near the ocean. This can be extended to people involved with activities that involve ocean and seas like fishermen. The aspect of traveling cannot be ignored when considering the infectious diseases and the global warming in most cases infected people travel from are location to another regardless of their health conditions. The warm climate conditions may provide a favorable atmosphere which promotes the fast multiplication of the pathogens which results in spreading of the disease. It is common that warm temperatures promote the multiplication of most pathogen. This therefore affects more human being health conditions which would be expected to be vice versa in colder climatic conditions.
Glaciers are found in the cold parts of the world mostly near the poles. Increased temperatures have caused a reasonable glacial retreat in many parts of the world. The climate in many such regions constitutes low temperature which allows the subsequent formation of glaciers. Global warming spreads from the hot regions to cold regions which results in the retreating of glaciers. In some situations this is found to pose a threat to the inhabitants hiring in such location from disrupting the infrastructure and causing negative changes to the environment.

Considering the effects of global warming to human health, a conclusive need to reduce it is necessary to consequently reduce the harm that relate to human health. One of the effective means is to increase the elimination of green house gases. Carbon dioxide which has the largest contribution to the green house gases can be reduced by increasing the reservoir which consists of vegetation and trees. Forests play a major role in consumption of carbon dioxide which is necessary in photosynthesis. Increased forestation and reduced deforestation can have a great impact in improving the situation. It is suggested that use of heavy industrial machineries and motor vehicles contribute a lot in emission of carbondioxide to the environment. In most cases the percentage is increased by faulty machineries which produce higher level of the carbondioxide than the ones in their normal conditions. Most of these faulty machines need to be replaced with the good machine which emits less carbondioxide. Supplementing of the fossil fuels with renewable energy which does not produce carbondioxide can also be considered as an important aspect in reducing the global warming. This includes use of hydropower, wind power or nuclear energy where necessary.

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The persistence effects and threats of global warming require combined efforts globally in reducing and providing a much more reliable environment. Various strategies have been implemented but more concise solutions are necessary to be involved.

Reference

Houghton, J. (1997). Global Warming: The Complete Briefing. Cambridge: Cambridge University Press.
Nebeker, F. (1995). Calculating the Weather: Meteorology in the 20th Century.
New York: Academic Press. Paul R. Epstein. (2000). Is Global warming harmful to health? Scientific American.