What follows are facts about global-warming/climate change from scientists, or otherwise educated people, who have studied the issue. Climate change or global warming is not the working of one simple gas produced by the modern, industrialized world. The complexities of what effects our climate are myriad.
Greenland has been cooling since 1940. "The Greenland ice sheet and coastal regions are not following the current global warming trends." P. Chylek, et al. 2004, "Global Warming and the Greenland Ice Sheet", Climate Change 63, 201-21. (A factual footnote from Michael Crichton's novel, State of Fear, Harper Collins, 2004.)
"There are a number of causes of climatic change, and until all causes other than carbon dioxide increase are ruled out, we cannot attribute the change to carbon dioxide alone." Reid A. Bryson Ph.D., D.Sc., D.Engr. (Emeritus Professor of Meteorology, of Geography and of EnvironmentalStudies. Senior Scientist, Center for Climatic Research, The Gaylord Nelson Institute for Environmental Studies [Founding Director], the University of Wisconsin, Madison.) http://www.sitewave.net/news/s49p1837.htm
"Water vapor is at least 100 times as effective as carbon dioxide, so small variations in water vapor are more important than large changes in carbon dioxide." (ibid.) (Few, if any computer models of climate change factor in water vapor!)
"The oceans, by virtue of their enormous density and heat storage capacity, are the dominant influence on our climate. It is the heat budget and energy flows into and out of the ocean which largely determines what the global mean temperature of the surface atmosphere will settle to. These flows, especially evaporation, are quite capable of cancelling the slight effect of CO2. This is clearly evident in the tropics where there has been no temperature increase at all in spite of a 50% increase in CO2-equivalent greenhouse gases." John L. Daly, http://www.john-daly.com/deepsea.htm
"Global Warming is not due to human contribution of Carbon Dioxide (CO2)."
"Richard Lindzen . . . is an atmospheric physicist and a professor of meteorology at MIT, renowned for his research in dynamic meteorology - especially atmospheric waves. He is also a member of the National Academy of Sciences and has held positions at the University of Chicago, Harvard University and MIT. Linzen frequently speaks out against the notion that significant Global Warming is caused by humans."
"As Lindzen said many years ago: 'the consensus was reached before the research had even begun.' Now, any scientist who dares to question the prevailing wisdom is marginalized and called a sceptic, when in fact they are simply being good scientists." Timothy Ball, Ph.D in Climatology, University of London, England, former professor of climatology at the University of Winnipeg, Canada.
"Water vapor constitutes Earth's most significant greenhouse gas, accounting for about 95% of Earth's greenhouse effect.
"Water vapor is 99.999% of natural origin. Other atmospheric greenhouse gases, carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and miscellaneous other gases (CFC's, etc.), are also mostly of natural origin (except for the latter, which is mostly anthropogenic).
"Human activites contribute slightly to greenhouse gas concentrations through farming, manufacturing, power generation, and transportation. However, these emissions are so dwarfed in comparison to emissions from natural sources we can do nothing about, that even the most costly efforts to limit human emissions would have a very small-- perhaps undetectable-- effect on global climate." Monte Hieb
"Of the 186 billion tons of CO2 that enter earth's atmosphere each year from all sources, only 6 billion tons are from human activity. Approximately 90 billion tons come from biologic activity in earth's oceans and another 90 billion tons from such sources as volcanoes and decaying land plants.
"At 368 parts per million CO2 is a minor constituent of earth's atmosphere-- less than 4/100ths of 1% of all gases present. Compared to former geologic times, earth's current atmosphere is CO2- impoverished." Monte Hieb (Different article than above.)
"In what could be the simplest explanation for one component of global warming, a new study shows the Sun's radiation has increased by .05 percent per decade since the late 1970s. . . . 'This trend is important because, if sustained over many decades, it could cause significant climate change.' . . . . 'Solar activity has apparently been going upward for a century or more.'" Robert Roy Britt, Science.com.