peer review of Huang Xin's WA2

I think some of your expressions are not quite idiomatic. For example in the first paragraph, you said:” An article “Research on global sun block needed now”, Keith, Parson, & Morgan (2010), discussed….” In my opinion the correct expression should be “In the article named”…”, Keith, Parson, and Morgan discussed….” There are also some grammar errors such as “turn out to be” instead of “turn out be”, “at the same time” instead of “at same time”. The organization is quite clear. First, you state the background of the issue and your thesis. Second, you give three reasons to further explain why you do not support focus on sulfur particles as the way to combat climate change. Third, you rebut the opposite opinions. At last, you summarize your opinion and state the reasons again. However, I think you should give more data, figures and facts to support your opinion. For example, you can list some facts that sulfur particles truly bring the side effects such as acid rain, and also when you rebut that cost of solving the side effects is much, you can also give some data which is more convincible.
Liu Yufeng