Some people believe that the Earth is being harmed by human activity . Others feel that human activity make the Earth a better place to live . What ' s your opinion ? - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ------------------------- ‘ Natural disaster ’ would be the most serious problem at issue these days . When we turn on the television or pc or read the newspaper , this naturaldisaster issue comes out . Many scientists are saying that the earth isaching , is sick and is dying . Many say that all causes for thedisasters are caused by us , the humans . As I am a human , I agree withthe scientists by several reasons . First of all , I think the main reason that the Earth is sick is greenhouse effect . Green house effect is an effect caused by green housegases such as carbon monoxide and carbon hydrate and it destroys theozone layers . Now many people in this world are using cars , airplanesor ships to move around . Then obviously , green house gases would beproduced from these machines . Large number of factories can be alsomain cause of this green house gases . To comfort our lives , we aredestroying the Earth . Second reason can be development . Humans are eager to develop orinvent something . To develop something , we require the raw materials . These raw materials come from forest . We cut down trees and destroysoils and pollute the areas . Lack of trees means there are less sourceto convert carbon dioxide to oxygen . This would lead more green - housegases to be produced . When the development is in a process , therewould be lots of waste would be produced . This waste would flow to thewater or maintain in the soil . If this thing keeps going , it would beimpossible for organisms to live on it . Third reason can be human ’ s ignorance . Many scientists have knownthat the Earth is becoming sick for few decades . They have been alsotold people about how serious it is . However , we ignored it and keptdeveloping . For few decades , holes in ozone layer became enormouslybig and ice bergs in north and south poles are melting . Volcanoes areerupting frequently and earthquakes are occurring several times . Still , people don ’ t care about what they are doing . The people wouldnever stop unless this Earth explodes . Even now , the Earth is becoming weak and weak . There is no one to askfor a help . We , the humans are the ones who destroy this Earth . Bydeveloping , deforestation occurred and by it , green house gasesproduced a lot . The most important thing is that we ignored what ishappening to the Earth . We have to stop behaving stupid and try hardto recover the Earth .