A.FromIndiatoAustralia.

B.LivinginaaNewCountry.

C.TurningTrashtoTreasure.

D.InSearchofNewFriends.

B

SincethefirstEarthDayin1970,Americanhavegottenalot“greenter”towardtheenvironment.“Wedidn’tknowatthattimethereevenwasanenvironment,letalonethattherewasaproblemwithit,”saysBruceAnderson,PsidentofEarthDayUSA.

Butwhatbeganasnothingimportantinpublicaffairshasgrownintoasocialmovement.Businesspeople,politicalleaders,universityprofessors,andespeciallymillionsofgrass-rootsAmericansaretakingpartinthemovement.“Theunderstandinghasincreasedmany,manytimes,”saysGaylordNelson,thefromergovermorfromWisconsin,whothoughtupthefirstAccordingtoUSgovernmentreports,emissions(排放)fromcarsandtruckshavedroppedfrom10.3milliontonsayearto5.5tons.ThenumberofcitiesproducingCObeyondthestandardhasbeenreducedfrom40to9.Althoughseriousproblemsstillremainandneedtobedealtwith,theworldisasaferandhealthierplace.Akindof“Greenthinking”hasbecomepartofpractices.

Greatimprovementhasbeenachieved.In1988therewereonly600recyclingprograms,;todayin1995thereareabout6,600.Advancedlights,motors,andbuildingdesignshavehelpedsavealotofenergyandthereforePventedpollution.