更新时间：2025-08-07 14:28:35
inthepasthundredyears,therehaveheenfrequentnaturaldisasters,suchasfloods,droughts,mud-rockflows,seismicseawaves,earthquakes,windstormsandthestretchingofnewdeserts.
thedisastershavekilledmillionsuponmillionsofpeople,destroyedcountlesshomes,andwipedoutnumerouspiecesoffertileland.
nowmoreandmorepeoplebecomeawarethatthosedisastershavemuchtodowithwhatwehavedonetotheearth.wehavecutdowntoomanytreesintheforests,wehavebadlypollutedtheenvironment,wehaveshockedourownhome-planettimeandagainwithtremendouslypowerfulexplosionsofnuclearbombs.
asaresult,climateshavebecomeabnormal,rainwaterrushesdownhillsidesangrily,andtheundergroundenergygoesuptorevengeitselfonus.
theearthisouronlyhome-planet.itisurgentforustostopdamagingit,andtodoourbesttoprotectitandmakeitalovelyplacesuitabletolivein,forwehavenowheretogoandsurviveexceptwherewearenow.
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