Essays / having problem with my synthesis paper [3]

Thank EF_Sean.

I dont have any links to my articles since they come from my course book.
The reason I am confused with this assingment is that they two artciles are the same; both authors talk about the the effects of global warming. The only difference between the two is that one talks about global warming worldwide and the other is talking about Canada only. The first artilce talks about the cause of global warming, the history of gobal warming, changes in weather and enviroment. The second article is just photographs of different places in Canada with direct quotes from the author. The photographs are about no snow, people driving sports cars, melting ice.