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1、世界地球日英文资料 backgroundinformation:earthday april22isearthday,ourcountrythisyeartodeterminethethemeof"treattheearth,protecttheenvironment." earthdayoriginatedintheu.s..in1969,democraticsenatorgaylordnelsonproposedtheparkintheu.s.schoolsheldworkshopsonenviron
2、mentalissues,andthefollowingyearonapril22as"earthday."then25-year-oldharvardlawschoolstudentdenniswillsoonbetheproposalthroughouttheunitedstatesintoalarge-scalemunity-basedactivities,specificideas,andgetenthusiasticsupportofmanyyoungstudents.april22,1970,the
3、unitedstatesforthefirsttimeheldamassive"earthday",around2,000peopleparticipated,theunitedstatessinceworldwarii,washailedasthelargestsocialactivities. april22,1990,morethan140countriesaroundtheworld,200millionpeoplearoundthesametimeheldavarietyofpromotionala
4、ctivities,thethemeishowtoimprovetheoverallglobalenvironment.theeventmadepeoplemoreclearlyrecognize,astheglobalindustrycontinuestodevelop,ozonelayerdestruction,andtheresultingglobalclimatechange,isbeingadirectthreattotheglobalproblemofhumanexistence.theactivi
5、tiesoftheunitednationsapproval,then,everyyearonapril22wasidentifiedasthe"worldearthday." currently,themoreprominentenvironmentalissues,soilerosion,desertification,pollutionoffreshwaterresources.accordingtounfiguresreleasedbythe20thcentury,theworld'sforestar
6、ea90atanaverageannualrateof2.4%rctioninthepast10years,theworld'stotalforestareaofthedisappearanceof94millionhectares.atpresentnearlyhalfthelandsurfaceandmorethanonebillionpeopleaffectedbydesertification.pollutionintheatmosphere,from1965to1998,globalcarbondio
7、xideemissionsdoubled.theworldisfacingawatercrisisinmanycountries:12millionpeopleshortofwater,3.0billionpeoplelackwatersanitation eachyearfrom3,000,000to400milliondeathsandwater-relateddiseases.by2025,thewatercrisiswillbespreadto48countries,35millionaretrapp
8、edbythewater. earthdayactivitiesheldtoraisehumancaringfortheearth,protectthehomeinpromotingthecoordinateddevelopmentofresourcedevelopmentandenvironmentalprotection.my90yearsfromthe20thcentury,t
