" The positive feedback mechanisms that researchers choose to focus on includes the following. Ice naturally reflects heat in the form of solar radiation back into space. When ice flows melt, less heat is reflected and consequently, more heat is absorbed by the earth. The more the ice melts, the more heat is absorbed by the earth, raising the surface temperatures and thereby causing more ice to melt. Few other positive feedback mechanisms have been adequately addressed by the literature found in online trade publications. Further research should be done on the positive feedback mechanisms involving the depletion of vegetation and animal life in the arctic, for example. Moreover, because positive feedback essentially constitutes a vicious cycle of global warming, its effects should be readily apparent, probably far before they impact human populations. The websites at New Scientist.com, the United States EPA, and the Union of Concerned Scientists all point to the positive feedback mechanism as speeding up the global warming process, exacerbating human causes. In fact, one of the reasons why scientists are focusing so much on global warming in the Arctic is that what happens in the Arctic is a precursor to what will happen elsewhere. In a sort of trickle-down effect, Arctic global warming will eventually manifest south of the pole. Most of the literature includes some reference to the anthropogenic (human) causes of the problem. Of these anthropogenic causes, the extant literature concentrates most on greenhouse gases. "Early Warming Signs," an article published by the Union of Concerned Scientists, Ravilious'...
west coast," the EPA's article "Climate," Maggie Fox's Reuters piece "Ocean, Arctic Studies Show Global Warming Is Real" and Bhattacharya's "Arctic warming at twice global rate" all note the relevance of human causes such as air and water pollution on creating global warming in the arctic.
" Monitoring and enforcing a [CO.sub.2] treaty would be very difficult, if not impossible. Reductions in [CO.sub.2] emissions by rich countries could be negated by increased [CO.sub.2] emissions in fast-growing developing countries (Udall, 1990)." One of the issues facing the global warming crisis is the debate about who is most responsible for its creation and who should be financially responsible for its curbing. According to recently gathered data Americans are causing a much
Nuclear Power the Best Alternative to Fossil Fuel? Is nuclear energy the best alternative to fossil fuels in terms of the need for energy, taking into account the economy and the environment? This is an issue that embraces several other issues, in particular global climate change, the science behind climate change, the politics surrounding climate change and the continuing need for new sources of energy. This paper will address those
Capitalism and the Global Environment A framework has been formed by capitalism according to which the world is not responding to the environmental changes. Capitalism produces (or is formed by) a number of environmental changes and lays down the foundation for the social relations and for all the political institutions. This thus demonstrates our potential to respond to the changing environment very efficiently. But still the learners of global environmental change
Prisoner's Dilemma situations are more common than some might actually think they are, as most people often come across them in their daily lives. Given the fact that Axelrod has a background in political science, he observed that PD is frequently encountered in the U.S. Senate. Senators are accustomed to helping out their colleagues, as they are perfectly aware that their assistance will materialize in their colleagues repaying them. The
Geology (1) Discuss which of the interrelationships between the environmental spheres, in your experience, has had the biggest effect on human society, or vice versa. Give some examples. The work of Manahan (2005) explains that there are four traditional environmental spheres including the hydrosphere, atmosphere, geosphere and the biosphere. It is related however, that a fifth sphere should be included and that is the anthrosphere, which consists of "the things humans make
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