GRE写作Issue部分精品素材分享之保护生态学

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美国政府的环保政策

The government‟s environmental programs are working well, according to EPA administrator William K. Reilly in the Green Thumb of Capitalism: The Environmental Benefits of Sustainable Growth. Solid governmental programs have been developed for the improvement of the environment, indicates Reilly; several situations quantify its success. According to Reilly, the government is creating adequate market incentives to curb pollution, encourage energy efficiency and waste reduction through low-cost programs, in conjunction with the private sector. To his credit, Reilly cites some powerful programs which may make at least short-term environmental and economic success: bioremediation, telecommuting, curtailing emissions and reusing resources. However, Reilly seems to follow a predictable governmental pattern to avoid discussion of the savored trucking and nuclear industries (industries with notoriously powerful lobbying abilities), among others. Rather, he focuses on the aftermath of the Exxon-Valdez cleanup catastrophe. It is not only curious that a catastrophe could be listed as a success in the larger scheme of environmental issues, it also does not address the aspect of making a corporation more accountable for its failures, or even discuss what changes have been made in the oil industry to prevent such catastrophes from occurring again. Additionally, the idea that accounting for the national well-being be measured by some other bean-counting system besides the GNP and NNP really avoids considerations of common sense. For example, if discontinuing usage of CFCs will enable the restoration of the ozone layer, it follows that proper policy-making would include the discontinuance of CFCs. Bean-counting does not provide for this logical relationship. Reilly espouses the thought that capitalism is not a threat to the environment; he indicates that its mechanisms actually encourage decisions that respect environmental values. He evidences that the situation in the United States is exemplary in comparison to third-world counties in South America and in the former USSR.

保护生态学的概念

Conservation biology, or conservation ecology, is the science of analyzing and protecting Earth‟s biological diversity. Conservation biology draws from the biological, physical and social sciences, economics, and the practice of natural-resource management. Conservation ecology addresses population dynamics issues associated with the small population sizes of rare species (e.g., minimum viable populations). The term “conservation biology” refers to the application of science to the conservation of genes, populations, species, and ecosystems. Conservation biology is the scientific study of the phenomena that affect the maintenance, loss, and restoration of biological diversity. For the history of biodiversity conservation and volunteer activity, see conservation movement.

保护生态学的历史

In the 19th century actions in the United Kingdom, the United States and certain other western countries emphasized the protection of habitat areas pursuant to visions of such people as John Muir and Theodore Roosevelt. It was not until the mid-20th century did efforts arise to target individual species for conservation, notably efforts in big cat conservation in South America led by the New York Zoological Society. By the 1970s, led primarily by work in the United States

under the Endangered Species Act along with Biodiversity Action Plans developed in Australia, Sweden, the United Kingdom, hundreds of specific species protection plans ensued. The Society for Conservation Biology is a global community of conservation professionals dedicated to advancing the science and practice of conserving Earth‟s biological diversity.

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