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Parker, J. 1961. Seasonal trends in carbon dioxide absorption, cold resistance, and transpiration, of some evergreens. Ecology, 42, 2: 372-380.
Carbon Emissions in the United States
Wiebe, R. & Gaddy, V. "Vapor Phase composition of Carbon Dioxide - Water Mixtures at Various Temps. And Pres. to 700 Atmospheres". Journal of American Chemical Society 1941: 475-77.
Sweetening Natural Gas
1991 per capita carbon dioxide emissions (in metric tons) (WR, 1994-1995). Range 0.04 to 36.49 (Open).
Preparation for Peace
Laurence, William F. "Gaia's Lungs, Are Rainforests Inhaling Earth's Excess Carbon Dioxide?" Natural History 108.2 (1999): 96.
The Gaia Hypothesis
Wilson, Z. Network administrator and computer programmer. Personal consultation. X-10. Products, Always Thinking. Accessed online November 21, 2004 from http://www.alwaysthinking.com/products/products.html
The Technological Environment of the Classroom
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