Environmental, Social and Economic
Impacts of Dams

A review of our current understanding and debates relating to the environmental and social impacts of dams and large-scale water engineering projects, should begin with reference to two "classic" texts. The Careless Technology, a report of 1968 conference published in 1972, reported for the first time the extensive social, economic and environmental impacts of these projects. Edward Goldsmith and Nicholas Hildyard argued in their 1984 survey, The Environmental and Social Impacts of Large Dams, that these impacts were not the product of poor planning or management, but were intrinsic to the technology, and largely unavoidable wherever this technology is employed. The "benign superdam": a clean source of energy, generating benefits at reasonable cost, was, they concluded, a myth.

Environmental Impact

Social Impact

Economic Impact

 

Sources:
o
Alam, Mohammed K., Muhammad R. Mirza, O. Eugene Maughan,
"Constraints and Opportunities in Planning for the Wise Use of
Natural Resources in Developing Countries: Example of a
Hydropower Project," Environmental Conservation, 1995, 22(4):
352-358.
oBarrow, C. J., "Health and Resettlement Consequences and Opportunities Created as a Result of River Impoundment in Developing Countries," Water Supply & Management, 1981, 5: 135-150.
o Baxter, R. M., "Environmental Effects of Dams and Impoundments," Ann. Rev. Ecol. Syst., 1977, 8: 255-283. [A Canadian perspective.]
o Biswas, Asit K., "Health, Environment and Water Development: An Understanding of the Interrelationships," Environmental Professional, 1985, 7: 128-134.
o Deudney, Daniel, "Hydropower: An Old Technology for a New Era," Environment, 1981, 23(7): 16-20, 37-45.
o Dynesius, Mats, Christer Nilsson, "Fragmentation and Flow
Regulation of River Systems in the Northern Third of the World,"
Science, 1994, 266: 753-762.
o Goodland, R., "Hydro and the environment: evaluating the tradeoffs," Water Power & Dam Construction, November 1986: 25-33. [Argues that dam projects can be environmentally benign, if planned and managed properly.]
o Goodland, Robert J. A., Anastacio Juras, Rajendra Pachauri, "Can Hydro-reservoirs in Tropical Moist Forests be Environmentally Sustainable?" Environmental Conservation, 1993, 20(3): 122-130. [Conclusion: Yes. A revised and expanded version of Goodland (1986), however with some interesting changes in emphasis.]
o Hall, Anthony, "Grassroots Action for Resettlement Planning: Brazil and Beyond," World Development, 1994, 22(12): 1793-1809.
o Ludwig, H. F., "Environmental Aspects of Multi-Purpose Reservoir Projects in Developing Countries," Water Science & Technology, 1982, 14: 269-288.
o Pearce, Fred, The Dammed, "Feed the World", pp. 182-194 [on the
environmental implications of irrigation projects.]
o Pearce, Fred, The Dammed, "The Myth of Renewable Energy", pp. 226-232 [on the problem of reservoir siltation.]
o Russo, T. N., "Making hydropower sustainable," Hydropower & Dams, November 1994: 126-131. [Argues that hydropower dams are an essential renewable resource, but they must be designed and managed better if they are to remain acceptable.]
o Szekely, Francisco, "Environmental Impact of Large Hydroelectric Projects on Tropical Countries," Water Supply & Management, 1982, 6(3): 233-242.
o Williams, Philip B., "The Debate over Large Dams: The Case Against," Civil Engineer, August 1991.



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