Nowadays,peoplearefacedwithseriousproblems.Onethirdoftheworld'speopledon'thaveenoughcleanwater.Ithinkwateristhemostimportantthingforhumanbeingstolive.Isuggestweshouldsavewaterandprotectitfrompollution.Notonlythewater,butalsotheairispolluted.Moreandmorediseasesarecausedbypollutedair.Itisreallyabigproblem.Ihopefatorieswouldpaymoreattentiontotheairconditioninfuture.Anditisalsoeveryone'sresponsibilitytocareforourenvironment.当今人们面临着严重的问题.世界上有三分之一的人没有干净的水.我认为水是人类赖以生存的最重要的条件.我建议大家节约用水,并防止水污染,不仅是水,空气也被污染了.由空气污染引起的疾病也越来越多.这的确是个大问题.我希望以后工厂要注意空气质量.关心环境问题,也是我们每个人的责任.