Other than the pro and anti-global activists, the reports also present two other distinct groups with regard to the changing global climates. These are the Naysayers vs. Consensus. Accordingly, the articles describe the naysayers as those who hold the opinion that the sun is responsible for a huge chunk of global warming while the consensus group includes those who believe that the small change in solar output over the past 50 years is too small to explain the levels of warming recorded globally. This group concedes that the pattern of warming witnessed has some human touch, in addition to being natural.
Also notably pointed out in the articles are the arguments by those who oppose the existence of global warming. Firstly, these global warming existence critics have questioned why temperatures in some areas are getting lower if there is really global warming. Secondly, they have argued that the recorded temperature rises report temperatures around urban centers citing the fact that most climate stations are located around major global cities. The authors’ notes that these doubt spreaders (as the article refers to them) are the main reason behind lack of a firm decision to deal with carbon emissions. A case cited is The Rio treaty called for countries to voluntarily stabilize their greenhouse emissions by returning them to 1990 levels by 2000 (As it turned out, U.S emissions in 2000 were 14 percent higher than in 1990) (Samuelson 5).