Journal Entries ②

　　　　　'The　Columbian　Exchange'　is　the　influence　of　exotic　species　to　the　ecosystem｡　　As　the　exchanging　of　the　continents　became　active,　the　damage　from　the　Columbian　Exchange　is　becoming　more　severe｡　　Economical　loss　according　to　the　Columbian　Exchange　problem　is　going　over　trillion　won　anually｡　　However,　korean　government　hasn't　figued　out　any　method　to　deal　with　this　problem｡　　Moreover,　they　don't　even　know　the　actual　conditions｡　　　
　　　　　Extoic　species　harms　our　ecosystem,　and　they　also　have　strict　impact　on　agriculture　and　fisheries｡　　Besides,　they　also　serve　as　mediations　for　all　the　heavy　diseases　and　allergies｡　　The　damages　are　getting　more　and　more　serious　as　exotic　species　seems　to　increase｡Therefore　we　need　to　come　up　with　some　counterplan　to　solve　those　problems　before　we　get　more　loss｡
　　　　　The　first　thing　to　do　work　out　is　to　know　the　exact　degree　of　our　damage｡　　And　then　we　need　to　make　a　national　comprehensive　countermeasures　like　the　US　and　Japan｡　　In　that　way,　we　will　be　able　to　regulate　the　number　of　increasing　exotic　species｡
　　　　　The　Columbian　Exchange　problem　has　much　more　serious　impact　on　the　earth｡ Faster we act, the better for us. Therefore we　need　to　perceive　that　exotic　species　are　great　harms　to　our　ecosystem　and　execute　systems　after　specifying　in　law｡