You need a colon and period in your sentence.
Answer:
perspective means:
1. the art of representing three-dimensional objects on a two-dimensional surface so as to give the right impression of their height, width, depth, and position in relation to each other.
"the theory and practice of perspective"
2. a particular attitude towards or way of regarding something; a point of view.
"most guidebook history is written from the editor's perspective"
Hi. Unfortunately I was unable to access the article this question refers to. However, I will try to help you in the best possible way.
We can see that the view that Chicago is “…at the forefront of the green-roof movement” is refuted, with the phrase showing that Germany has a much larger amount of green roofs than Chicago. This shows that Chicago does not deserve the title of "forefront" in the use of these roofs, as there are places, such as Germany, that have taken the lead in this attitude.
Unfortunately, without reading the article it is not possible to know how it affects the general tone and mood of the article. However, considering that this is an informative article, we can consider that this rebuttal, presents the feeling that green roofs are something that is being established very slowly in America, even though this is a very beneficial attitude for society. Furthermore, this rebuttal may present a delayed mood, as it shows that America is late in implementing this technology. This can be seen because the tone and mood of a text establish the sensation and feeling that the author of the article wants to promote through reading.
