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过渡词和衔接词使用的比较不错；采用了一些简单的从句；希望高级词汇的使用能更熟练一些，还要加强单词拼写的检查。
Nowadays, as our ecomomic get develope, our environment problem get more and more serious. The factory emission the pollution gases, like carben dioxigen. These gases turn to greenhouse gas which can make our ecosystem hotter then before. the global warming can make the sea level up above the coast. In order to deal with the climate change，the United Nations held the 15th Climate Change Conference in Copenhagen from Dec.7 to Dec.18，2009．All the president of each coutries attending this conference. In my oppion, the developed coutries should be help the developing counties to reduce the pollution gases emission. The people should plant more trees and the gaverment should built some equipment to recycle the greenhouse to become another energe.
