Auto-SummaryThe scientific consensus, as expressed by major bodies such as the Intergovernmental Panel on Climate Change (IPCC) and various scientific societies in the United States, is that human activities are causing significant changes to Earth's climate, primarily through the increase in greenhouse gas concentrations. This consensus is supported by a majority of peer-reviewed scientific literature, with only a small fraction of papers rejecting the consensus view. Despite any doubts about the complexities and uncertainties within climate science, the evidence overwhelmingly supports the reality of anthropogenic climate change.
Quote: Produce them please. Credible scientific data may mean different things to different people, but if your sources contain references to actual published studies that have been peer-reviewed and critically analyzed, then you definitely do have evidence. I am anxious to see this.
ok..... here is an article that summarizes the general consensus of the scientific community based on peer-reviewed articles.
Quote: Policy-makers and the media, particularly in the United States, frequently assert that climate science is highly uncertain. Some have used this as an argument against adopting strong measures to reduce greenhouse gas emissions. For example, while discussing a major U.S. Environmental Protection Agency report on the risks of climate change, then-EPA administrator Christine Whitman argued, "As [the report] went through review, there was less consensus on the science and conclusions on climate change" (1). Some corporations whose revenues might be adversely affected by controls on carbon dioxide emissions have also alleged major uncertainties in the science (2). Such statements suggest that there might be substantive disagreement in the scientific community about the reality of anthropogenic climate change. This is not the case.
The scientific consensus is clearly expressed in the reports of the Intergovernmental Panel on Climate Change (IPCC). Created in 1988 by the World Meteorological Organization and the United Nations Environmental Programme, IPCC's purpose is to evaluate the state of climate science as a basis for informed policy action, primarily on the basis of peer-reviewed and published scientific literature (3). In its most recent assessment, IPCC states unequivocally that the consensus of scientific opinion is that Earth's climate is being affected by human activities: "Human activities ... are modifying the concentration of atmospheric constituents ... that absorb or scatter radiant energy. ... [M]ost of the observed warming over the last 50 years is likely to have been due to the increase in greenhouse gas concentrations" [p. 21 in (4)].
IPCC is not alone in its conclusions. In recent years, all major scientific bodies in the United States whose members' expertise bears directly on the matter have issued similar statements. For example, the National Academy of Sciences report, Climate Change Science: An Analysis of Some Key Questions, begins: "Greenhouse gases are accumulating in Earth's atmosphere as a result of human activities, causing surface air temperatures and subsurface ocean temperatures to rise" [p. 1 in (5)]. The report explicitly asks whether the IPCC assessment is a fair summary of professional scientific thinking, and answers yes: "The IPCC's conclusion that most of the observed warming of the last 50 years is likely to have been due to the increase in greenhouse gas concentrations accurately reflects the current thinking of the scientific community on this issue" [p. 3 in (5)].
Others agree. The American Meteorological Society (6), the American Geophysical Union (7), and the American Association for the Advancement of Science (AAAS) all have issued statements in recent years concluding that the evidence for human modification of climate is compelling (8).
but what do all these pseudo-scientists and their lengthy credentials know... right? Us logical and smart people know better, and refuse to accept any of this data.... right?
but here is some "middle-ground" reporting, which is the second half of this report.
Quote: The drafting of such reports and statements involves many opportunities for comment, criticism, and revision, and it is not likely that they would diverge greatly from the opinions of the societies' members. Nevertheless, they might downplay legitimate dissenting opinions. That hypothesis was tested by analyzing 928 abstracts, published in refereed scientific journals between 1993 and 2003, and listed in the ISI database with the keywords "climate change" (9).
The 928 papers were divided into six categories: explicit endorsement of the consensus position, evaluation of impacts, mitigation proposals, methods, paleoclimate analysis, and rejection of the consensus position. Of all the papers, 75% fell into the first three categories, either explicitly or implicitly accepting the consensus view; 25% dealt with methods or paleoclimate, taking no position on current anthropogenic climate change. Remarkably, none of the papers disagreed with the consensus position.
Admittedly, authors evaluating impacts, developing methods, or studying paleoclimatic change might believe that current climate change is natural. However, none of these papers argued that point.
This analysis shows that scientists publishing in the peer-reviewed literature agree with IPCC, the National Academy of Sciences, and the public statements of their professional societies. Politicians, economists, journalists, and others may have the impression of confusion, disagreement, or discord among climate scientists, but that impression is incorrect.
The scientific consensus might, of course, be wrong. If the history of science teaches anything, it is humility, and no one can be faulted for failing to act on what is not known. But our grandchildren will surely blame us if they find that we understood the reality of anthropogenic climate change and failed to do anything about it.
Many details about climate interactions are not well understood, and there are ample grounds for continued research to provide a better basis for understanding climate dynamics. The question of what to do about climate change is also still open. But there is a scientific consensus on the reality of anthropogenic climate change. Climate scientists have repeatedly tried to make this clear. It is time for the rest of us to listen.
Now, i agree that the scientific community is fallible, but to discredit an overwhelming concensus with the statement "humans do have an impact on the earths climate via greenhouse gases" cannot be just dismissed as "pseudo-science".
Quote: If you are seriously doubting the effects of the mosquito problem in Africa, then you need to do some research. I have lived in Africa (both northern and sub-Saharan) so rather than belabor the point to you, please learn more about this issue on your own. I know firsthand about the problems this insect has caused, and if you are keen to live by an infested body of standing water, then be my guest.
now who is side-tracking? granted, your firsthand experience of Africa outstrides my knowledge of it, even though my uncle contracted Malaria from nigeria.... but how about distributing quanine? how about instead of putting more money into buying dubious chemicals, why not spend that money on different ways of combating the mosquito problem? Also, what does DDt have to do with global warming at all? are we going to bring the Aswan dam into this as well?
also, where is my debating posturing? where is my ad hominem? if anyone is slinging ad hominems, it is you. get a dictionary and check your posts...bub.
http://www.sciencemag.org/cgi/content/full/306/5702/1686
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