The cause of global warming has been the subject of debate among scientists and experts for many years. In fact, Svante August Arrhenius, a Swedish chemist, first predicted global warming in 1896 (Harris 16). Researchers who agree that it is naturally caused insist that the greenhouse effect has many natural causes. Others agree that the cause of the increase in Earth's temperature is just part of a continuous cycle. These researchers argue that solar activity plays a huge role in the global warming problem. Therefore, based on the greenhouse effect myth, cyclical patterns, and solar activity research, global warming is not a man-made dilemma. When greenhouse gases trap heat in the atmosphere, similar to the way greenhouse glass traps heat, it is called the greenhouse effect. Carbon dioxide, methane and nitrous oxide are three of the main greenhouse gases. People fear that an extreme increase in these gases could have negative effects on nature and society. These changes can result in drastic floods and droughts, increasing numbers of insects, rising sea levels and a redistribution of precipitation rates. Alterations can also compromise the health of society and hinder economic growth (Hopwood & Cohen 1). Carbon dioxide is the main cause of the greenhouse effect. It is an odorless gas that absorbs heat from the sun. Fermentation, the slow decay of objects containing sugar, is one of the causes of carbon dioxide emissions in nature. An example of this process includes the fermentation of grapes into wine (Harris 6). Carbon dioxide is released into the air as humans breathe; this is obviously not something people can stop doing (Hopwood & Cohen 3). Every year more than 130 million tons of carbon dioxide are released into the air by volcanic activity... half the paper... nature. Works CitedCarlisle, John. The sun is responsible for global warming. National Policy Analysis, June 1998. Website. February 13, 2011.Harris, Jack. The greenhouse effect. New York: Crestwood House, 1990. Print. Milankovitch cycles and glaciation. Montana Education. Website. February 9, 2011.Nick Hopwood and Jordan Cohen. Greenhouse gases and society. March 8, 1998. Website. February 8, 2011. Schewe, Phil, Riordon, James and Stein, Ben. Physics news update. American Institute of Physics, June 19, 2003. Website. February 9, 2011. Sources and emissions. U.S. Environmental Protection Agency, June 22, 2010. Website. February 9, 2011. Volcanic gases and their effects. USGS, June 11, 2010. Website. February 8, 2011. Wheldon, Julie. (March 5, 2007). The greenhouse effect is a myth, scientists say. Prince.org. Retrieved from http://prince.org/msg/105/219920