Scientists opposing the mainstream scientific assessment of global warming

This is a list of scientists who have made statements that conflict with the scientific consensus on global warming as summarized by the Intergovernmental Panel on Climate Change and endorsed by other scientific bodies. As approximately 97% of publishing climate scientists support the consensus on anthropomorphic climate change, this list represents a minority viewpoint.

The scientific consensus is that the global average surface temperature has risen over the last century. Scientific opinion on climate change was summarized in the 2001 Third Assessment Report of the Intergovernmental Panel on Climate Change (IPCC). The main conclusions on global warming at that time were as follows:

These findings are recognized by the national science academies of all the major industrialized nations; the consensus has strengthened over time and is now virtually unanimous. The level of consensus correlates with expertise in climate science.

There have been several efforts to compile lists of dissenting scientists, including a 2008 US senate minority report, the Oregon Petition, and a 2007 list by the Heartland Institute, all three of which have been criticized on a number of grounds.

For the purpose of this list, a "scientist" is defined as an individual who has published at least one peer-reviewed article in the broad field of natural sciences, although not necessarily in a field relevant to climatology. Since the publication of the IPCC Third Assessment Report, each has made a clear statement in his or her own words (as opposed to the name being found on a petition, etc.) disagreeing with one or more of the report's three main conclusions. Their views on climate change are usually described in more detail in their biographical articles. Few of the statements in the references for this list are part of the peer-reviewed scientific literature; most are from other sources such as interviews, opinion pieces, online essays and presentations.

These scientists have said that it is not possible to project global climate accurately enough to justify the ranges projected for temperature and sea-level rise over the next century. They may not conclude specifically that the current IPCC projections are either too high or too low, but that the projections are likely to be inaccurate due to inadequacies of current global climate modeling.

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