海洋酸化 Ocean Acidification 英语作文.docx

海洋酸化 Ocean Acidification 英语作文.docx

《海洋酸化 Ocean Acidification 英语作文.docx》由会员分享，可在线阅读，更多相关《海洋酸化 Ocean Acidification 英语作文.docx（4页珍藏版）》请在冰豆网上搜索。

海洋酸化OceanAcidification英语作文

OceanAcidification

Oceanacidificationcanbedefinedastheon-goingdecreaseintheEarth’soceans’pHlevels,whichiscausedduetotheuptakeofcarbondioxidefromtheatmosphere.Theprimarycausebehindoceanacidificationistheburningoffossilfuels.Seawaterisbasic,andoceanacidificationinvolvesshiftingpHtowardspH-neutralconditionsratherthanacidicconditions.

Theissueduetooceanacidificationisadecreasedproductionoftheshellsofshellfishaswellasotheraquaticlifethathavecalciumcarbonateshells.Themarineandcoralecosystemsareunderextremestressfromclimatechange.Oceanacidificationposesarealthreattothesurvivalofmanymarinespecies.

LongAndShortEssaysOnOceanAcidificationforStudentsandKidsinEnglish

Weprovidestudentswithessaysamplesonalongessayof500wordsandashortessayof150wordsonthetopicofoceanacidificationforreference.

LongEssayOnOceanAcidification500WordsInEnglish

HumanactivitiesdischargeCarbonDioxideintotheatmospherethatleadstoatmosphericwarmingandclimatechanges.AlmostahalftoathirdoftheCarbonDioxidereleasedduetohumanactivitiesisbeingabsorbedintotheoceans.

Eventhoughthishelpsreducetherateofatmosphericwarmingandclimatechange,italsohasanimmediatechemicaleffectonseawaterknownasoceanacidification.

Sincetheindustrialrevolution,formorethan200years,theconcentrationofcarbondioxideintheatmospherehasincreasedbecauseoftheburningoffossilfuelsandland-usechange.

Theoceanwaterabsorbsabout30percentofthecarbondioxide,whichisreleasedintotheatmosphere.Asthelevelsofcarbondioxideincrease,sodoesthesealevel.

AstheseawaterabsorbsCO2,achainofchemicalreactionsoccurs,resultinginincreasedhydrogenionsconcentration.Thisincreaseresultsintheseawaterbecomingmoreacidicandcausescarbonatedionstobecomerelativelylessabundant.

TheUnitedNationsEnvironmentProgramhasmentionedthatoceanacidificationcouldalterspeciescomposition,biodiversity,fishingindustryandtourism.

Carbonatediconsareanessentialbuildingblockfromstructuressuchasshellsandcoralskeletons.Decreasedcarbonateionscanmakethebuildingandmaintainingofshellsandothercalciumcarbonatestructuresdifficulttocalcifyorganismssuchasclams,seaurchins,oysters,shallowwatercorals,andcalcareousplanktonanddeep-seacorals.

Thesechangesinthechemistryoftheoceancanaffectthebehaviourofthenon-calcifyingorganismsaswell.Certainfish’s–whichcandetectpredators–arebeingdecreasedinmoreacidicwaters.Asthesemarineorganismsareatrisk,thewholefoodwebmightalsobeatrisk.

Oceanacidificationaffectsalltheoceansintheworld,alongwithcoastalestuariesandwaterways.Severaleconomiesaredependentonshellfishandfish,andpeopleworldwidedependonfoodfromtheoceansastheirleadingsourcesforprotein.

Marinescientistsarealsoworriedthattheprocessofoceanacidificationpossessesaseverethreattomarinelifeandthecultureswhichdependontheoceanfortheirlivelihoodandfood.

Oceanacidificationalsohasanadverseeffectonthehealthofhumans.Humansareintricatelylinkedwiththehealthoftheocean.Wehumanshavereliedontheoceanforresourcessuchasfood,recreation,medicationandtransportation.Oneofthemostapparentconnectionsiswithseafood.

Oneofthemosteffectivewaysforlimitingoceanacidificationistoactonclimatechange–implementingsolutionsdramaticallyreducingtheuseoffossilsfuels.Whenglobalwarmingemissionsarecontrolled,futurewarmingwillbelimited,eventuallydecreasingthemarineecosystems’harm.

Theoceansintheworld’sPolarRegions–intheArcticandAntarctic–areespeciallysensitivetooceanacidification.TheBayofBengalinIndiaisanothermainfocusofresearch,partlybecauseoftheuniqueseawatercharacteristicsandpartlybecauseofthepoordatacoveragewiththeuseoftraditionalmethods.

ShortEssayOnOceanAcidification150WordsInEnglish

ShortEssayOnOceanAcidificationishelpfultostudentsofclasses1,2,3,4,5and6.

Oceanacidificationimpliesareductionintheocean’spHlevelsoveralongperiodoftime,whichiscausedprimarilyduetotheuptakeofcarbondioxidefromtheatmosphere.

ThepHofseawaterinpresent-dayishighlyvariable,andasingleorganismcanmanageinthefluctuationsofdifferentpHlevelsduringitslifetime.Oneofthemainproblemswithoceanacidificationisthechange’ssustainednature.Therapidpaceofacidificationmightinfluencetheextenttowhichcalcifyingorganismswillbeabletoadapt.

Oceanacidificationcanhaveanegativeeffectonthemarineecosystem,whichcausestheshellsandskeletonsoforganismsmadewithcalciumcarbonatetodissolve.Animalsthatproducecalciumcarbonatestructureshavetospendextraenergytorepairtheirdamagedshellsorthickenthemtosurvive.

Theshellfish’sabilitytobuildtheirshellswillbeimpacted.Also,lowerpHlevelswillhaveaneffectonthemetabolismofseveralorganisms.

10LinesOnOceanAcidificationInEnglish

OceanacidificationimpliesthereductioninthepHoftheoceanduetoexposuretoCO2.

Someorganismswillnotsurviveduetooceanacidification.

Somespeciesmightdisappearaltogetherasaneffectofoceanacidification.

Whalesanddolphinswilldirectlybeaffectedduetooceanacidification.

Oceanacidificationwilldisruptthefoodweb.

Oceanacidificationisoftenreferredtoas‘climatechange’seviltwin’.

Theimpactsduetooceanacidificationcanbehuge.

Oceanacidificationreducescarbonateinseawater,whichisacrucialbuildingblockintheocean.

Oceanacidificationcanbereducedbyreducingglobalwarming.

ThepHlevelofseawaterinthepresent-dayishighlyvariable.

FAQ’sonOceanAcidificationEssay

Question1.

Howseriousisoceanacidification?

Answer:

TheoverloadofCO2intheseawateriscausingseachanges,threateningfragile,finitemarinelifeandlivelihoods,foodsecurityandlocaltoglobaleconomies.

Question2.

Whathappensifoceanacidificationcontinues?

Answer:

Thechangeinoceanchemistrywillleadtocollapsingfoodwebs,dyingcoralreefs,corrosivepolarseasandmassextinction,alteringthewaterairandfoodforever.

Question3.

Whichanimalsaremajorlyaffectedbyoceanacidification?

Answer:

Shell-forminganimalssuchascrabs,corals,oystersandurchinswillbefirsthitbyoceanacidification.