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Related Experiment Videos

Is it worth a dam?

S Joyce

    Environmental Health Perspectives
    |December 24, 1997
    PubMed
    Summary
    This summary is machine-generated.

    Dams offer water management benefits but cause significant environmental and social harm, disrupting ecosystems and displacing communities. These large-scale water infrastructure projects lead to ecological damage and public health issues.

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    Area of Science:

    • Environmental Science
    • Ecology
    • Public Health

    Background:

    • Dams have historically symbolized modernization and growth.
    • Over 800,000 dams exist globally, serving purposes like water supply, flood control, and hydropower.
    • Increasingly, dams are recognized for their negative environmental and social impacts.

    Purpose of the Study:

    • To evaluate the multifaceted consequences of global dam construction.
    • To highlight the adverse effects of dams on ecosystems and human populations.

    Main Methods:

    • This study is a review of existing literature and data on dam impacts.
    • Analysis of ecological, social, and health outcomes associated with dam projects worldwide.

    Main Results:

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    • Dams disrupt natural ecosystems and lead to a decline in fish populations.
    • Dam construction necessitates forced resettlement of human and animal populations.
    • Stagnant waters created by dams can foster diseases like malaria.

    Conclusions:

    • The benefits of dams for water management are often outweighed by severe environmental degradation and social disruption.
    • Mitigation strategies and alternative water management solutions are needed to address the negative externalities of dams.