The present paper looks at two exam

The present paper looks at two examples of secondary research into hydraulic fracturing, with reference to two key issues: the economy and the environment. Firstly, a brief statement of the main ideas in each article is provided and then both are compared in terms of content. This reveals that they share many thematic commonalities despite the fact that their main focus differs. The final section assesses them with reference to academic quality and their usefulness to further research on the same topic. It is found that they both have merit and will be relevant although the greater detail and comprehensiveness of the first paper renders it the more useful resource of the two.