Population Population

Population

Population

Theworldpopulationcontinuesto changeeverydaysince there are multiplefactorsthat havean impacton thegrowthof thepopulation.Since I wasbornin 1996, populationof theentireworldhas changedsignificantly.Forthelasteighteen years,theworldpopulationhas increasedsignificantly, with morechildrenbeingborneachyear.Theincreasedbirthratesin mostpartsof theworldcan be attributedto betterlivingconditions,as wellas accessto professionalhealthcare facilities.Theimprovementin livingconditionsdueto increasedincomehas ledto increasein populationgrowth.Ahighpercentageof mothersgivebirthin hospitalsas comparedto theperiodbefore 1996 whenpregnantwomenin mostpartsof theworldneverattendedhealthcare facilities.Asa result,infantmortalityrateshavedeclinedsharply,thusresultingto an increasein thepopulation(Cuff&amp Goudie, 2009).

Thereare manyhumandemandsandtheyhavean impacton food,energyandwater.With theincreasedhumanpopulation,itimpliesthatsomeof theearth’sresourcessuchas waterandenergyare increasinglybecomingdepleted.In orderto sustainthehumanpopulation,foodis needed.Thismeansthatthefoodreservesof theworldcontinueto declineover time.Besides, wateris anessentialresourceforthesurvivalof humans.Over time,waterresourcessuchas lakesandrivershavebeenaffectedby thehumanpopulation.Pollutionof thewaterbodiesis a commonphenomenonsince humansengagein activitiesthat giveout harmfulemissions.Forthelastfewdecades, oilhas becomea scarceresourceandthishas evenresultedto warsbetween nations.Despite its scarcity,oilis anessentialresourcethat playsa crucialrolein theproductionof foods(Goudie,2013).

Oilis refinedto giveout productssuchas diesel, petroleum,as wellas gasoline.Therefinedoilis thenusedto runfarmmachineryliketractorsthatare usedin preparingfarmsforplanting,andin harvesting.In addition,refinedoilhelpsto runfarmequipmentusedin thespraying of herbicides andpesticides. Theprocessing of mostfoodsisalsobasedon theuseof oilby foodprocessors thedeliveryof theprocessedfoodis alsodoneusingtrucksthat are runby oil.Themanufacturingof fertilizersisalsodoneusingmachinesthat are runby oil.Thus,oilis an instrumentalcomponentin theprovisionof food.Thenumberof peoplethat can liveonearthis ten billion. Thisis thelimitof peoplewhocan be sustainedby thefoodavailableglobally (Common &amp Stagl, 2009).

Inanyenvironmental problem,thehumanpopulationdensityis a factor.Thisis becausethepopulationof humansin anenvironmenthavean impacton theenvironmental factorsandresourcesavailablewithin theenvironment.Ahighpopulationdensityimpliesthattheenvironmental resourceswill bedepletedat a highrate.Thisisbecause ofthefactthathumanstendto exploittheresourcesin their environment.Forexample,ahighpopulationof humansin areasnear a forestmeansthattrees will be cutandpeoplewill settlein theforestwhile at thesametimeusingthetrees forotherpurposessuchas construction.Foodsecuritycanbe regarded as akeyissueof concernineverynation,especiallyin countrieswheretheweatherconditionsdonot supportgrowthof cropsandlivestockkeeping(Cuff&amp Goudie, 2009).

ChinaandSaudi Arabia can becategorizedas countrieswith littlearable land,andthusthere are littlechancesof cropsgrowingin thefarms.Thishas promptedthetwo countriesto purchasearable landabroadwheretheygrowcropsandlateron exporttheproduceto benefittheir people.Through internationaltradepolicies,itis possibleto purchaselandas a formof investmentandusethislandforfarming.SaudiArabia has boughtlandin Ethiopia andplantedrice, which theygrowin largescale.Whentherice isharvested,itis thentransportedto Saudi Arabiaanditfeedsthepopulation.Chinahas alsoboughtlandin partsof Africa suchas Mali wherewheatis plantedandtakento China upon harvesting.Althoughhumanbeingsare thesuperiorspecies,theycannot be thoughtof as a whole.Thisis becausethere are othercrucialcomponentsthat makeup theearth.Humansare partof thewhole(system),andthisis whytheycannot beconsideredas a wholethemselves. Humanscannot surviveon isolationsincetheyneedotherentitiessuchas animals,farms,andwaterresourcesamong others to be fullysufficient(Common&amp Stagl, 2009).

Globally,agriculturehas beenthemainsourceof livelihoodin manycountries,especiallyin thedevelopingandlessdevelopednations.With widespreadcropfarming,global agriculturehas nearlyhita naturallimit.However,itcannot be concludedthatagriculturehas surelyhitthenaturallimitas there is stillmorelandto becultivated.Althoughmostof thelandhas beenout into agriculturaluseandsomehasbeenusedforcommercialpurposes,there are aridandsemi-arid areasthat are not yetputinto properuse.With theuseof modernagriculturalknowledgeandskills,itis possibleto conductfarmingin areasthat may otherwiseseemnot arable. With his Nobel Peace Prize, Norman Borlaug has madeimmensecontributionsin thefoodproductionandagriculture.Thegreenrevolutionhas advanceda lotowingto theworksof Norman. With his Nobel Prize, issuessuchas famineandstarvationweredealtwith andthisreduceddeathsresultingfrom foodscarcity.In addition,peopleembracedtheneedto engagein largescalecropproductionin orderto enhancefoodsecurity(Seavoy,2003).

Inmostinstances,peoplemigratefrom theruralareasto theurbancentersin thehopethatlifewill be betterin towns.Thishas resultedto increasedpopulationgrowthin urbancenterswhilethepopulationof ruralareashas declined.Anothercommontrendin immigrationincludesthemovementofpeoplefrom lessdevelopedcountriesto developedcountries.Peoplemovefrom countriesin Africa, Asia andCentral America andsettlein theUnited States, as wellas European nations.Theimmigrantsbelievethatthere are greenerpasturesandmoreopportunitiesin Europe andAmerica. Thehumanpopulationhas witnesseda rapidincreasein therecentpast.Thiscan be attributedto reducedratesof deathandincreasedbirthrateshealthcare serviceshaveimproved,andaresult,mostof thechildrenbornin hospitalssurvive.In addition,improvedhealthcare impliesthatterminalillnessescan betreated,thusreducingthenumberof deaths(Goudie,2013).

Theprojectedpopulationgrowthwill affectmy engineeringcareerin a numberof ways.First,thepopulationgrowthwill promptme to becomeinnovative anddiscovertechnological devicesthat can servethehighpopulationeffectively.Secondly,increasedpopulationmeansthat,as an engineer,I should be concernedwith thedesignof urbancentersthat will servehighpopulations.During theindustrialrevolution,there wasan increasein theworldpopulation,which resultedfrom themigrationof peopleinto industriesin searchforjobs.In addition,theindustrialrevolutionimprovedthestandardof life,thusincreasingthepopulation.Reproductivecontrolsare hardto be discussedamong humanssince theyare guidedby culturalandreligiousbeliefs.There are someculturesandreligiousdoctrinesthat are against birthcontrols.

Asan essentialcommodity,waterhas becomescarceover time,andthiscan haveserioushealthimpacts.However,thedesalination of saline watercan helpaddresstheissueof waterscarcity.Seawater can beturnedinto freshwaterthrough theremovalof saltthat is alreadydissolvedin it.Thelargestpopulationgrowthismostlyexperiencedin poornations.Thisis becausethere is littleawarenessin thesecountriesabout thebenefitsof familyplanningin addition,there is limitedaccessto familyplanningmethods.Besides, thepoorlivingconditionsandlackof properhousingexposepopulationsin thesecountries.Culturaltraditions,valuesandbeliefsin thepoorcountriesalsocontributeto highpopulation.Thisis becausesometraditionsadvocateprocreationwhilethere is littleornoemphasison birthcontrol.Cheapoilcontributedto populationgrowthsince itattractedinvestors andbusinesspersonswhocameto settlein theoilproductionregions,thusincreasingthepopulationexponentially (Seavoy, 2003).

References

Cuff,D. J., &amp Goudie, A. (2009). TheOxford companion to global change.Oxford [etc.: Oxford University Press.

Common,M. S., &amp Stagl, S. (2009). Ecologicaleconomics: An introduction.Cambridge [u.a.: Cambridge Univ. Press.

Goudie,A. S. (2013). TheHuman Impact on the Natural Environment: Past, Present, and Future.New York: John Wiley &amp Sons.

Seavoy,R. E. (2003). Originsand growth of the global economy: From the fifteenth century onward.Westport, Conn. [u.a.: Praeger.