"Post-normal science," global warming, and the implications for journalism

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Pretty good explanation...

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Scientists traditionally are supposed to separate their work from values and cultural context. They work in tightly circumscribed disciplines, with little or no interaction with outsiders, most especially non-scientists. And the entire enterprise is "binary" in nature: With enough investigation, it can be determined whether a scientific claim is right or wrong. When enough research is done to whittle away the uncertainties, the answer can be found. If policy makers want to do something with this information, fine. That's their business. But ultimately, the purpose of the exercise is not to produce policy-relevant knowledge. It is to create new knowledge for knowledge's sake.

But with complex global issues such as climate change, Hulme and others argue that a different approach — post-normal science — is necessary. With these issues, uncertainties are great, values are absolutely relevant and in dispute, and the stakes are very high.

As a briefing paper from the Tyndall Centre puts it, action on complex, multi-dimensional issues such as climate change depends "on many value-driven decisions made in the face of uncertainty. It moves beyond traditional research, where 'truthful output' is everything to a method where the quality of the process of research is paramount." With issues like this, action has to be taken before a full understanding is gained. Research must be directed not simply at creating new knowledge but expressly to guide action. Consequently, the research must be conducted jointly by scientists and those who will have to carry out the actions. This means both experts and stakeholders work together.

The IPCC is a classic example of post-normal science. Although much of the heavy lifting is done by scientists, experts from government, business, and the policy world become involved in the process too, and ultimately the assessment reports are handed off to government officials for comment and amendment before the final drafts are published.

Singer and Avery clearly believe in the normal science paradigm. If only policy makers would pay attention to the correct science, then the proper descisions would be made — meaning policy makers would not waste time and precious resources trying to stop climate change. They, along with their opponents on the other side of the issue, frame it in this simplistic way. Pure Enlightenment science has provided an answer to the "global warming: yes or no?" question. The problem, of course, is that they have reached opposite conclusions.

http://cejnewsviews.blogspot.com/2007/03/p...arming-and.html