저 붉은 선에 대해, 많은 비판론자들은 영상이 최대한 심각하게 나오도록 하기 위해 환경론자들이 집어넣는 것이라고 말해왔다. 배출량이 절대로 저 붉은 선만큼 빠르게 증가하지는 않을거라는 말과 함께.
So that red line there was something that a lot of skeptics said the environmentalists only put in the projections to make the projections look as bad as possible, that emissions would never grow as fast as that red line.