Debateon Global Warming
Debateon Global Warming
Global warmingis the rise in earth’s ordinary surface temperature because ofgreenhouse gases. The world continues to experience changes in seasurface and air temperatures thus, increased global warming. In thisregards, as temperature rises, climate patterns changes thus, moreunpredictable and extreme weather globally, which means that placeswill become wetter, drier, or hotter. Dillon, Wang & Huey (2010)contend that although debate remains on the context of globalwarming, 90% scientists agree that absorptions of greenhouse gasescreated by human actions cause global warming. Likewise, Florides,Christodoulides & Messaritis (2011) assert that IPCC(Intergovernmental Panel on Climate Change) agrees that carbondioxide is the largest cause of global warming. In fact, humanactivities have resulted to considerable changes in climate as theydisrupt global water cycle. In this regards, the assessment of thedebate on global warming will help determine the main causes ofglobal warming globally.
Florides et al., (2011) contend that with the current humanactivities and greenhouse gases emissions, earth’s surfacetemperatures will rise considerably over the next years. However,climate changes and related effects will differ across regions.Increases in global temperatures will continue to increase sealevels, alter pattern and amount of snow, and enlarge subtropicaldeserts. In fact, Florides et al., (2011) argue that arctic regionwill experience strongest warming with the ongoing withdrawal ofpermafrost, glaciers, and sea ice, extreme weather actions, oceanacidification, and species extinctions. Worse still Athanasiou &Baer (2011) assert that the world will realize more threats to foodsecurity and loss of habitat than it currently experiences, ifcountries fail to mitigate global warming through reducing emissions,developing climate engineering, adapting to the effect of warming,and building structures resilient to global warming effects.
On the otherhand, the controversy on global warming has been ongoing for severaldecades and usually revolves around the impacts of human activitieson global warming and the threat of global warming to theenvironment. Dillon et al., (2010) see the controversy on globalwarming in three fronts i.e. some people see global warming as ahazard to the society, others see it as a myth, and others haveextreme standpoints on the issue. However, Athanasiou & Baer(2011) recognize the controversy as between politicians, scientists,and the public. In both viewpoints, the debate arises from theinformation on global temperatures. Dillon et al., (2010) contendthat opponents of data on global warming disapprove the legitimacy ofdata displaying a rise in global temperatures because satellitestatistics have revealed a contrasting trend i.e. decreasing globaltemperatures. However, Dillon et al., (2010) assert that such apremise is unfounded since satellite data focuses on temperatures inthe upper sphere while global warming entails changes in surfacetemperatures. Another question on global warming revolves around thecorrelation between temperature rises and greenhouse gases andwhether people contribute to greenhouse gases emissions. Perhaps,this is the most debated controversy of global warming especiallyamong politicians. In addition, the debate on changes in climatesbecause of global warming continues to elicit mixed responses.
Körner &Basler (2010) have described the current debate on global warming asa fight between supporters and opponents of the issue. According toKörner & Basler (2010) and Florides et al., (2011) supporters ofglobal warming argue that rises in greenhouse gases areanthropogenic, people will experience the effects of global warmingin centuries to come, carbon dioxide is the largest cause of globalwarming, and IPCC reports encapsulates the situation of ClimateScience. On the other hand, the opponents of global warming assertthat IPCC form deductions from Climate models, there exists directcorrelation between global temperatures and sunspot activities, thereis a difference between relationship and causation, Climate Sciencecannot make a conclusive forecast on global warming, and the worldhas experienced colder and warmer periods than today.
The politicalalliance focuses its debate on whether arrangements such as KyotoProtocol are necessary to mitigate global warming. The protocoltarget reduction in emissions, but antagonists claim that states willincur a lot trying to implement the protocol. On the other hand, theCopenhagen accord signed by parties to UNFCCC (UN FrameworkConvention on Climate Change) to limit future rises in temperaturesto under 2°C has seen countries back away from their commitment. Asaforementioned Dillon et al., (2010) claim that scientists agree thathuman activity is the largest contributor of global warming. A largenumber of scientists believe global warming is man made with only 5%of scientists disagreeing with the findings. In addition, scientistshave reached a consensus that the world has seen increased surfacetemperatures driven by human-prompted emissions. In fact, therecurrently does not exist a body of scientific knowledge thatdisagrees with the view that global surface temperatures have risenin decades.
The ,controversyon global warming remain etched in the public arena with discourseson the causes, nature, and implication of global warming. Inaddition, the debate has expanded to climate sensitivity, forecastson global warming, and future implications of global warming. Somepeople dispute the IPCC climate scenarios while others have supportedcalls for emission reduction. However, Athanasiou & Baer (2011)assert that according to Gallup Polls (2007-2008 in 127 nations) athird of the global population was unaware of global warming withonly 40% believing it is a threat and a mere 36% attributed the issueto human activities. Although, the world continues to agree on someissues of global warming, the debate continues.
Athanasiou, T., & Baer, P. (2011). Dead heat: Global justiceand global warming. Seven Stories Press.
Dillon, M. E., Wang, G., & Huey, R. B. (2010). Global metabolicimpacts of recent climate warming. Nature, 467(7316),704-706.
Florides, G. A., Christodoulides, P., & Messaritis, V. (2011).Global Warming: CO2 vs Sun. Global Warming, 23-62.
Körner, C., & Basler, D. (2010). Phenology under global warming.Science, 327(5972), 1461-1462.