Is the Global Warming Real?

world(a) warming has becoming an increasingly important issue in our environment every(prenominal)y conscious society as it is a problem affecting any aspect of the environment and the living beings everywhere on this planet. Yet, it is quite moot as to its nature, ca utilise, and the effects it exit bring along in the future. The total temperature of the earths surface has risen by 0. 8 floor Celsius since 1880.The International Panel on Climate form (the IPCC), based on the work of hundreds of scientists in more than than 100 countries, has concluded in its 2007 piece of music that this certain planetary warming is mainly ca customd by human activities, much(prenominal) as the burning of fossil cans, deforestation, and agriculture. (The IPCC 2007 Synthesis piece) These activities ingest greatly increase atmospheric meanness of glasshouse sportes, especially carbon dioxide ( carbon dioxide), methane (CH4), and nitrous oxide (N2O).These babys room gases atomic numbe r 18 naturally occurred and essential for life on earth as they trap the suns heat and keep the earth warm. If these gases were aloof from the strain, the earths temperature would plummet to -18 Celsius, far too cold to save our current ecosystem. However, humans are causing big increase in these greenhouse gas emissions, enhancing their heat- trapping ability. As a result, the temperature is rising higher(prenominal) and higher. Pidwimy, 2006) Scientists have similarly found that CO2 is the most important greenhouse gas which is responsible for 55% of the current warming. The atmospheric concentration of CO2 increase from 280 parts per million (ppm) in 1750 to 379 ppm in 2005. The principal primer coat for this mounting CO2 levels is the use of fossil fuels and falsifys in land use the burning of oil, gasoline, and coal for running cars, factories, and generating electricity, and the cutting down of forests to make vogue for farming, housing and otherwise development.Emi ssions from fossil fuel combustion contribute near 65% of the make foritional CO2 added to the atmosphere. (Pidwimy, 2006) The worlds biggest fossil fuel consumers are the United States, China, and the European Union. ( Damassa, 2006) Deforestation contributes 25% the CO2 emissions. Sir Nicholas bottom says the destruction of the rainforests of the Amazon, the Congo basin and Indonesia will in the bordering quadruplet years alone add more CO2 into the atmosphere than every flight in the history of aviation to at least 2025. consort to the audited figures from 2003, deforestation is releasing two zillion tons of CO2 into the atmosphere every year. (Howden, 2007) If these activities continue, the atmospheric CO2 concentration will be fork-like the pre-industrial levels during this century that will raise the world-wide temperatures by around 2?C to 5?C. (Pearce, 2008, P1) Chlorofluorocarbons are man-made greenhouse gases which account statements for 25% of the current warming . Chlorofluorocarbons have the strongest heat-trapping ability among all the greenhouse gases per molecule.However, the atmospheric concentration of these gases is pocket-size so they are not as damaging to the climate as CO2. Many nations have reduced their production and use of these man-made chemicals in response to Reports of the development of ozone holes over the North and South Poles and the general drop-off in international stratospheric ozone levels over the live 20 years, thus the concentration of these gases may soon begin to decline. (Pidwimy, 2006) Other two important contributors to ball-shaped warming are methane and nitrous oxide.Comparing figures from 2005 with pre-industrialised levels (measurements taken in 1750), methane increased from around 715 parts per billion (ppb) to 1774 ppb and nitrous oxide increased from 270 ppb to 319 ppb. (The IPCC Synthesis Report 2007) the main sources for the extra methane now found in the atmosphere are agriculture (r crosspa tch cultivation, grazing animals) and fossil fuel use (coal mining, and oil and gas extraction). Nitrous oxide is released into atmosphere from the loss of the forests, the cutting down forests for agricultural fields, and the use of fertilizers for plants growth. Pidwimy, 2006) The impacts of this man-made warming lie not solitary(prenominal), or so far primarily, in the temperature rise. It says in the IPCC Synthesis Report 2007, Discernible human influences extend beyond f tuneish temperature to other aspects of climate, including temperature extremes and wind patterns. Anthropogenic warming over the last three decades has likely had a discernible influence at the global scale on observed changes in many physical and biological systems.There are many other effects that have occurred ascribable to global warming, e. g. the melting of ice and snow cover, rising global modal(a) sea level, increase in intensity and frequency of extreme support events (heat weaves, heavy precipi tation, tropical cyclone activity). (The IPCC Synthesis Report 2007) 41 Scientists are predicting that global warming will produce a lot of negative consequences. match to the IPCC, the global average temperature will rise 0. 2 per decade for the next two decades if the greenhouse gas missions are at or above the current rate and this warming will cause further impose on _or_ oppress to the global climate system during the 21 century than those observed during the 20 century. (the IPCC 2007 Synthesis Report)The sea level is expected to rise between 7 and 23 inches (18 to 59 centimetres) due to thermal expansion and melting ice on land by the end of this century. By 2080s, many millions more People than today in coastal areas, especially in repellingly populated and low-lying mega deltas of Asia and Africa will be at great chance every year due to sea level rise. the IPCC 2007 Synthesis Report) it is estimated that thither are more than 180 countries having populations in low-l ying costal areas, 70% of which have urban areas of more than 5 million people that are at risk, including Tokyo New York Mumbai, India Shanghai, China Jakarta, Indonesia and Dhaka, Bangladesh. (Wagner, 2007)126 Global warming will pose threats to peoples health More frequent and frightening heat waves will cause more heat stroke and other heat-related illnesses and death.The elderly and the young are the most susceptible to these effects air pollution worsened by global warming will break to more respiratory and cardiovascular diseases, such as asthma and cardiac disarryhthmia Thanks to global warming, malaria-carrying mosquitoes are get arounding to cooler places too, where there has neer been this disease before, such as South Korea and the highlands of Papua New Guinea (Weiss, Pam, 2008) And a group of 12 diseases called Deadly Dozen have been found to spread due to the warming temperature, e. g.Avian Flu, Cholera, Plague, Ebola and Tuberculosis. (Simmons) Global warming wil l add significantly to the worlds water shortage problem as it increases the severity of droughts, foods, and cyclone, all of which reducing the water supply and destroying the quality of water. Wong Poh Poh, a professor at the National University of Singapore, says that the U. N. Intergovernmental Panel on Climate Change has found that 2 billion people will not have access to adequate drinking water by 2050 and 1. 2 billion more people will be under the threat of severe water shortage by 2080. NG, 2008)86 Many of the worlds species could be on the verge of extinction due to global warming. According to the IPCC 2007 report, that 20- 30 % of the worlds species would become extinct if global average temperature rises additive 1. 5 to 2. 5?C (relative to 1980-1990) and 40-70% would be expected if the increase in temperature exceeds 3. 5?C. (the IPCC 2007 Synthesis Report) However, there are some scientists who are disbelieving about this man-made global warming theory. According to these sceptics, Climate change is a natural process and is not caused by man.The world has see warmer and colder periods in the past without any external cause so a minor rise (less than a degree) in global average temperature is normal. Explains Richard L. Lindzen, a professor of meteorology at the Massachusetts Institute of Technology, the motions of the massive oceans where heat is moved between deep layers and the surface provides variability on time scales from years to centuries. Recent work suggests that this variability is enough to account for all climate change since the 19 Century. Lindzen asserts that the warming in the tropics around an altitude of about 9 km should be 2. generation greater than the surface warming but the measurements show that warming at these levels is only about ? of the surface warming. This means the greenhouse effect only contributes to about one third of the surface warming and not all of this really small warming is caused by man. (Lindzen, 2 009) Global warming sceptics also argue that computer models which predict the future climate are not reliable. According to S. Fred Singer, an atmospheric physicist at George Mason University, these computer models can not calculate all the important parameters around the globe therefore are unable to predict the future climate.Singer says, If you only calculate temperature, winds, and so on at intervals of 200 miles, then you cannot depict clouds, or even cloud systems, which are much smaller. So until the models have a goodish enough resolution to be capable of depicting clouds, its very intemperate to put much faith in them. Singer also claims that these models do not agree with each other in predicting the temperature rise for a doubling CO2 levels. Some predict a warming of 5 degrees Centigrade while others predict one degree. (