Global Warming – Coursework Example

Global Warming Global warming is a controversial topic that elicits reactions and commentary from the scientific, political and social communities. Various sources have questioned the validity and reliability of global warming statistics, going so far as to term global warming a myth. This provides a fertile ground for comparison of reliable and unreliable sources.
The first source is the paper “Northern Hemisphere Temperatures during the Past Millennium: Inferences, Uncertainties and Limitations”. The authors are eminent global warming experts, well recognized in the field. They also have a number of research papers published in academic journals. The particular paper of focus is in a respectable, academic journal and is peer-reviewed. The reviews, both negative and positive, have received recognition by the authors. The paper itself follows the academically accepted format of establishing a hypothesis and presenting empirical evidence to support it. It offers data sets presented in various charts and graphs to lend credence to the theory of global warming. It also recognizes that no statistical data is completely without error. The inferences the authors make may be erroneous, and thus the conclusions may be uncertain. The paper also contains a large number of scholarly references, giving credit where it is due and thus avoiding plagiarism. This paper is therefore a quality source.
The second source is “500 Scientists Whose Research Contradicts Man-Made Global Warming Scare”. The Heartland Institute, a conservative think-tank, published this article. The organization is controversial for supporting causes such as smoking and its questionable sources of funding. The article has been accused of misrepresenting the scientists’ evidence on global warming, twisting information to suit its agenda. The reliability of the article is also doubtful, as many of the scientists whose work was quoted have requested to have their names removed from the article. This article would therefore make a poor source.
Mann, E., Bradley, S., & Michael, K. (1999). Northern Hemisphere Temperatures during the Past Millennium: Inferences, Uncertainties and Limitations. Geophysical Research Letters. Volume 26. pp 759 – 762.