4.22世界地球日英语作文：Earth Day

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4.22世界地球日英语作文：earthday

april22thearthdaywasfirstobservedinspringof1970.anestimated20millionpeoplenationwideattendedfestivitiesoutofwhichcamethelargestgrassrootsenvironmentalmovementinu.s.history,andtheimpetusfornationallegislationlikethecleanairandcleanwateracts.bythetwentiethanniversaryofthatevent,april22,1990,morethan200millionpeoplein141countriesparticipatedinearthdaycelebrations.

formeru.s.senataylordnelson,earthday'sco-founder,modeledearthdayonanti-vietnamwardemonstrations,called"teach-ins,"thatweremononcollegecampuses."ataconferenceinseattleinseptember1969,iannouncedthatinthespringof1970therewouldbeanationwidegrassrootsdemonstrationonbehalfoftheenvironment,"saysnelson."theresponsewaselectric.telegrams,letters,andtelephoneinquiriespouredinfromallacrossthecountry."asmanyas20millionamericansparticipatedinenvironmentalrallies,demonstrationsandotheractivitiesinthe1970earthday.