A new study using methods endorsed by the Al Gore crowd concludes that there is no “consensus” among scientists that man is contributing to global warming. Also can 17,000 scientists be wrong?
One of the most often cited pieces of evidence that man is causing global warming is a study by
Naomi Oreskes that showed 75% of the examined scientific abstracts either explicitly or implicitly backed a view that man was contributing to global warming. This “consensus view” has been repeated ad nauseam, ad infinitum and is behind Al Gore's “the case is closed” statements. The Naomi Oreskes study was based on a keyword search of a database of scientific studies. This keyword search found 928 abstracts, published in refereed scientific journals between 1993 and 2003. Of those 928 abstracts 75% explicitly or implicitly backed the “consensus view” of anthropogenic climate change (or man-made global warming).
Of course there has been a lot of criticism of this study in that it is not at all scientific even though its purpose is to review scientific studies. To begin with the keyword search only looked for “global climate change”, if your viewpoint doesn't believe in global warming you may not use that term. Certain terminology is used by people if they have a certain viewpoint, other terms may be used if they have the opposite viewpoint. There were other studies that challenged the “consensus view” that showed as few as 30% of the studies supported the “anthropogenic climate change” view.
Since many of the studies found in Naomi Oreskes' survey are now nearly 15 years old a new survey was done using the same techniques. By examining peer-reviewed papers published on the ISI Web of Science database medical researcher Dr. Klaus-Martin Schulte repeated Oreskes' study. The new study found 528 papers that matched the search results for the period 2004 through February 2007. Of those
only 7% gave an explicit endorsement of the “consensus view”. Extending the scope to those that gave either an explicit or implicit endorsement the study found 45% in support of the “consensus view”. Even more striking is that a majority (54%) now either reject the “consensus view” outright or are now neutral regarding anthropogenic climate change. You can read more regarding this new study at
DailyTech.com.
http://www.globalwarminghoax.com/news.php?extend.26
Ceci dis je suis pas convaincu par l'article, mais ca mérite réflexion tout du moins 
