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1、HotEssay论文网（hotessay.cn）--专业paper写作,report写作辅导中心留学paper写作-避免海洋污染和过度开发的问题Asweallknow,theoceancoverstwo-thirdsoftheearth.Theoceanprovideshalftheoxygenweneedtobreatheandplaysavitalroleinclimateregulation.(n.d.1)Also,itprovidespeoplewithjobs,medicines,attractions,entertainmentand20%ofthetotalhumanprotei
2、nintake.众所周知，海洋覆盖了地球的三分之二。海洋提供了我们呼吸所需氧气的一半，在气候调节中起着至关重要的作用。此外，它还为人们提供工作、药品、娱乐和20%的人体蛋白质摄入。OnJuly14.2016,IOC(theIntergovernmentalOceanographicCommissionunderUNESCO)releasedaresearchonthecurrentsituationoftheworld'slargeMarineecosystems,inwhichitstatedthathumanactivitieshavecontributedtotheworseningsi
3、tuationoftheworld'slargeMarineecosystems.About50%oftheworld's66largeMarineecosystemsareoverfished,and64largeMarineecosystemsareaffectedbythewarmingofthesea.Inaddition,morethan50%oftheworld'scoralreefsarethreatenedandthepercentagewillreach90%by2030.(Zhou4)7月14日。2016年，国际海洋学委员会(UNESCO下属的政府间海洋学委员会)发布了一份
4、关于世界大型海洋生态系统现状的研究报告，其中指出人类活动加剧了世界大型海洋生态系统的恶化。全球66个大型海洋生态系统中约有50%被过度捕捞，64个大型海洋生态系统受到海洋变暖的影响。此外，全球超过50%的珊瑚礁受到威胁，到2030年这一比例将达到90%。(周4)Moreandmoreshockingnewsaboutmarinepollutioncameout.Takeplasticpollutionforinstance,therearereportsshowthatmorethan200kilogramsofplasticaredumpedintotheoceaneverysecond,a
5、ndmorethan8milliontonsofplasticremainintheoceaneachyear.TheGreenPeacestatedthatplastichasbeendirectlyblamedforthedeathofawiderangeofanimalsandbothmassivetrashandthesmallestpiecesofplasticcanendangermarinelife..(n.d.1)Incidentsofmarineanimalsdiedofplasticpollutionoccursallthetime.Theturtlesoftenmista
6、kenlyeattheplasticasjellyfish.Theplasticcannotbedigestedbytheturtles,soitclogupinthemandaccumulate,eventuallyburstingtheturtles.Someturtleswillhavetostopeatingbecauseofthepainandfinallystarvetodeath.Havingalotofplasticwasteintheirbodies,manyturtlescannotdiveintotheseaanymorebecauseofthebuoyancy.With
7、outeffectiveimprovementsonplasticwastemanagement,thecumulativequantityofplasticwasteintheoceanispredictedtoincreasebyanorderofmagnitudeby2025.(JambeckJR,etal6)HotEssay论文网（hotessay.cn）为留学生提供优质的paper写作,
