http://www.globalwarminghoax.com/news.php?extend.26
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 31,000 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.
Also refuting the “consensus view”, and almost never mentioned in the popular news media, was a petition signed by over 17,000 31,000 scientists, two-thirds with advanced degrees, against the Kyoto Protocol. The petition was sponsored by the Oregon Institute of Science and Medicine. Here is part of what these scientists signed their names to:
There is no convincing scientific evidence that human release of carbon dioxide, methane, or other greenhouse gasses is causing or will, in the foreseeable future, cause catastrophic heating of the Earth's atmosphere and disruption of the Earth's climate. Moreover, there is substantial scientific evidence that increases in atmospheric carbon dioxide produce many beneficial effects upon the natural plant and animal environments of the Earth.
This was not an anonymous survey, these scientists put their reputations on the line and put their name beside their opinion. You can read more about this at the Global Warming Petition. One needs to keep in mind the following regarding this petition:
over 2/3rds of the signatories had advanced degrees,
2,660 were physicists, geophysicists, climatologists, meteorologists, oceanographers, and environmental scientists
5,017 were scientists whose fields of specialization in chemistry, biochemistry, biology, and other life sciences
Hardly a bunch of “flat earth” types as the global warming mass hysteria crowd likes to call anyone that dares to challenge their scientifically weak viewpoint that man is destroying the planet by causing global warming.
So the next time you hear the media throw out the terms “consensus view” or “scientific consensus” regarding man-made global warming (or CO2 causing global warming) you'll know they either haven't done their homework or they've drank the Al Gore Kool-Aid and don't want to report the truth.
UPDATE (6/10/2008): The petition now has over 31,000 verified signatures.
Is there a scientific consensus on global warming?
In the scientific field of climate studies – which is informed by many different disciplines – the consensus is demonstrated by the number of scientists who have stopped arguing about what is causing climate change – and that’s nearly all of them. A survey of all peer-reviewed abstracts on the subject 'global climate change' published between 1993 and 2003 shows that not a single paper rejected the consensus position that global warming is man caused. 75% of the papers agreed with the consensus position while 25% made no comment either way, focusing on methods or paleoclimate analysis (Oreskes 2004).
Several subsequent studies confirm that “...the debate on the authenticity of global warming and the role played by human activity is largely nonexistent among those who understand the nuances and scientific basis of long-term climate processes”. (Doran 2009). In other words, more than 95% of scientists working in the disciplines contributing to studies of our climate, accept that climate change is almost certainly being caused by human activities.
We should also consider official scientific bodies and what they think about climate change. There are no national or major scientific institutions anywhere in the world that dispute the theory of anthropogenic climate change. Not one.