以《life on Mars》为题写一篇英语作文,

我写的,如下,纯手打,无语法错误.
It's estimated that 2012 will be the end of the world.The population has become a disturbing problem.To bring a better solution to this issue,scientists proposed the theory of living on Mars.
It might be a wholy different circumstance to live on Mars due to the environmental factors that differs greatly from the earth.Firstly,much less oxygen and a majority of carbon dioxide constitutes the atmosphere there.Therefore,to make it a suitable place for us human to live in,we need to set up some powerful machines that continuously produce oxygen.
Secondly ,experts should figure out a possible method to turn the ice into water easily,which is essential in our life.Finally,because of the specific condition on Mars,some food may be delivered in the form of pills.
To sum up ,chances are that human will live on Mars for the serious population problem on our earth.What is necessary is that we take measures to make it a comfortable place that suits human.