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Globalwarming is a human cause

Globalwarming is a contentiousissueamong bigeconomycountries,scientistsandglobal environmental bodies.There is a growingconcernon theeverrisingtemperatureson theearththat continuesto alterseasonsandchangethenaturallookof theearth.Thetemperaturelevels recordedin thelastcenturyare verydifferentfrom whatwehavetoday.Somescientistsclaimthattheincreasedchangein temperatureis dueto humaneffortsthat exploitthenaturalresourcesin themostirresponsibleway.Theydothisby releasingemissionsinto theenvironmentwith minimaleffortsto controlthepractice.Anotherschoolof thoughtbelievesthattheearthis undergoinga naturalchange,andthatis whythere is a recordof increasingtemperature.In thispaper,theavailableevidencewill provethatglobal warming is indeeddueto humanactivities.

First,theworld’spopulationnowstandsat 7 billion people.Thepopulationis higherthan in anyothertimein history.Thehugepopulationneedsa placeto settle,andthistranslatesto interferingwith thenaturallookof theworldin searchof placesto settle.Thenaturalresourceslike forestsandwetlands are nowbeinginhabited. Theworldhas its wayof regulatingits temperaturethrough theapplicationof thevariouscomponents.In fact,itis a self-sustaining system.However,humanactivitieshaveinterferedwith thissystem,andtheworldcan nolongercontrolall its happenings.Accordingto theUN Habitat (2010), thepre-industrial worldhad a totalof 5 billion hectares of forest.Todayonly31% of theearth’ssurfaceis coveredwith forests.Ittranslatesto about 4 billion hectares.Thedrophas reducedthecapacityof theearthto absorbcarbondioxide. Today,theEarth onlyabsorbs50% of carbondioxide. Theremainderaccumulatesin the atmosphere increasingthe global temperature(EPA 4).

Secondly,enhanced human activities have increased the rate of burningof fuels.Somescientistsbelievethattheearthis capableof absorbinggasesreleasedfrom theseactivities.Theyalsoclaimthatthesegasesare due to naturaloccurrencesin theatmosphere.However,humanbeingshavecrippledthecapacityof theearthto absorbthesegases.Accordingto theInternational Panel on Climate Change (IPCC), thecarbondioxide releaseddue to humanactivitieshas specificisotopes. Theseare differentfrom thoseof thecarbondioxide releasedfrom to theearth’snaturaloccurrences.Accordingto theNation Aeronautics andSpace Agency (NASA), theatmosphericconcentrationof carbondioxide standsat 389 partsper million. Theconcentrationis thehighestin 650, 000 yearswhentheconcentrationwas189 partsper million (EPA 4).

Evidencelacksto showthatnaturalactivitieslike solarenergyoroceancurrentsleadto global warming. There is proofto showthathumanactivitiesleadto thegreenhouseeffect.Humanbeingscontinueto burnfuelsthat releasea lotof carbondioxide into theatmosphere.Agoodexampleis thenatureof activitiesthat takeplacein developedcountries.TheUnited States of America accountsfor4.5% of theworld’spopulation.Thecountryis highlyindustrialized. Theindustriesin America accountfor24% of thecarbondioxide emissionsin theatmosphere.Thelevel of emissionin under-developed countriesis lowerthan in developedcountries.Theexampleis proofthathumanactivitiesincreasedcarbonemissions.Between 1880 and2012, theworld’stemperatureincreasedby 1.5 Fahrenheit on average.Theperiodbetween theyearsis theindustrialperiodduring which many humanactivitiestookplace.Industrialization explainswhythetemperaturecontinuesto increase(Christidis, Stott and,Brown 1925).TheNational Aerospace andAdministration Center (NASA), givesus evidencethatglobal warming is solelya causeof humanactivities.In 1938, theagencyerectedsatellitesto recordvariancefor energythat comesfrom thesun.In three decades, theamountof energygivenby thesunremainedconstant.Thestudyis enoughproofthatthesun’senergyis not a contributingfactorto theincreasedearthtemperatures.Theagency’sfindingsgoon to stressthathumanactivitiesleadto emissionof three gasesthat are poisonouswhenin excess.There has been an increase in emissions in theatmosphereby a thirdsince industrialization. Theindustrialrevolutionis solelya humanactivity.Methane is a resultof humanbeingsincreasingtheuseof landfills to decomposewastematterandcontinueduseof chemicalsin agriculture.Nitrous oxide comesfrom increaseduseof commercialfertilizersandtheproductionof nitric acid.Whenhumanbeingsreleasethesegasesinto theatmosphere,theyreflecttheheatcomingfrom theearthback,andthismakestheuniversehotter(Penuelas 5).

Naturaldriversof heatchangein theatmospherecannot causeglobal warming to thecurrentlevels. Scientists conducteda study usingcomputergeneratedmodelsin thepasthalfcentury.Amodelof naturaldriversof temperaturechangecannot providean estimateof temperaturechangesin thefuture.Their effectis negligible. Whenhumaneffortsgetan applicationin thesamecomputermodel,theygivean observabletrendin temperaturechange.From thestudy,wecan deduceinformationthatglobal warming is not dueto naturaloccurrencesbutdueto humanactivities(Hansen andMakiko 124).

Humanactivitiesin theworldcontinueto gointo largescale.There is a lotof miningtakingplaceas wellas increasedindustrialization. Researchshowsthatsince theindustrialization era,there has beena releaseof morethan 500 billion tonsof carbondioxide into theatmosphere.Thenumbersof naturaloccurrencesthat can contributeto global warming in thesameperiod,forexample,volcanic eruption,are toominimalto bringanysignificantchange.Thereleaseof carbondioxide due to humanactivitiesis thenumberone causeof global warming. Naturaldriversof temperaturechangecannot resultin suchdrasticchanges(Christidis, Stott, andBrown 1925).

Inconclusion,weneedto worryabout theincreasingtemperaturesin theatmosphere.Ifthetrendcontinues,theworldwill geta newshapedue to increaseddroughtsandunpredictableseasons.There is an effortby countriesjoininghandsto curbthecarbondioxide emissions.However,itis quitediscouragingto seesomecountrieswithdrawingfrom suchagreements,like theKyoto protocol,in favorof their economy.There are dangersthat are knockingon thedoorlike surgingseas due to icemelting(McMichael 1338). Theoccurrencecan resultin a lotof deathsanddestructionof property.Ifwedonot curbthesituation,developingcountrieswill continueto experiencehungerdue to increasedinstancesof drought.Allcountriesmust joinhandsandreducethe carbonemissionsinto theenvironment.

References

Christidis,Nikolaos, Stott, Peter, and Brown, James. &quotThe role of humanactivity in the recent warming of extremely warm daytimetemperatures.&quot Journalof Climate24.7 (2011): 1922-1930. Print.

Field,Barros and Stocker, Qin. for Policymakers:Managing the Risks of Extreme Events and Disasters to Advance ClimateChange Adaptation.United Kingdom: Cambridge University Press, 2012. Print.

Hansen,James, and Makiko Sato. Paleoclimateimplications for human-made climate change.Vienna: Springer, 2012. Print.

McMichael,Anthony. &quotGlobalization, climate change, and human health.&quotNewEngland Journal of Medicine368.14 (2013): 1335-1343. Print.

NationalAerospace and Administration Agency. Globalclimate change: vital signs of the planet,4thJanuary, 2015. Web&lt http://climate.nasa.gov/causes

Penuelas,Joseph. &quotThe human‐inducedimbalance between C, N and P in Earth`s life system.&quot GlobalChange Biology18.1 (2012): 3-6. Print.

USEnvironmental Protection Agency (EPA), FrequentlyAsked Questions about Global Warming and Climate Change: Back toBasics,April 12, 2010. Web&lt http://climatechange.procon.org/#background