A consensus may no longer exist about the causes of climate change. Only last year most media and many people supported the view that climate change was caused by people’s use of fossil fuels. However, the public view of global warming appears to have changed. Much of this change in people’s attitudes came from media coverage. This was augmented by concern for the economy and the effect of global warming legislation on the economy.

While few studies exist of mass media saturation using the diffusion of innovation model, research of global warming coverage by Dispensa and Brulle (2003) and Fisher (2007) explored methodologies that could show the diffusion of ideas among the press. A need exists to examine current coverage comparing it with coverage from a few years ago. Such a study would show the current state of global warming ideas among the media and further explore the methodology as a means of examining diffusion of innovation in the media.