s,”says
GaylordNelson,theformergovernorfromWisconsin,whothoughtupthefirst.AccordingtoUSgovernmentreports,emissions(排放)fromcarsandtruckshavedroppedfrom10.3milliontonsayearto5.5tons.ThenumberofcitiesproducingCObeyondthestandardhasbeenreducedfrom40to9.Althoughseriousproblemsstillremainandneedtobedealtwith,theworldisasaferandhealthierplace.Akindof“Greenthinking”hasbecomepartofpractices.Greatimprovementhasbeenachieved.In1988therewereonly600recyclingprograms,;todayin1995thereareabout6,600.Advancedlights,motors,andbuildingdesignshavehelpedsavealotofenergyandthereforepreventedpollution.
Twenty–fiveyearsago,therewerehardlyanyeducationprogramsforenvironment.Today,it
