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Ambassador report

Ambassador report

[Ambassador report] (thematic report) Environmental dams and the environmental cost s

by Fernanda pioli macedo | 24-05-2020 07:23 Comments 10 Comments recommendations 0 recommendations

While the most developed countries have slowed the construction of large hydroelectric dams in recent decades, developing nations started building even bigger dams in the same period. This is the case in Brazil.

The environmental impacts caused by the construction of a hydroelectric plant are irreversible. Although hydroelectric dams use a renewable, zero-cost natural resource that is water, they theoretically "do not pollute" the environment. In common, all hydroelectric projects present problems of intervention in nature and mainly in local lives.

The formation of the dam strongly affects the local fauna and flora, since, suddenly, the forest formed over hundreds of years turns into a lake. Many species end up submerged and, consequently, die, creating a kind of limbo, which compromises the functioning of the turbines.

The implantation of hydroelectric plants irreversibly interferes in the local microclimate, causing changes in temperature, relative humidity, evaporation and affects the rain cycle.

Large dams have forced some 40-80 million people, most of them indigenous, tribal, and peasant communities from their lands in the past six decades devastating them economically, culturally, and psychologically according to theWorld Commission on Dams.1

The hundreds of hydroelectric plants built to date in Brazil have resulted in more than 34,000 km2 of flooded land for the formation of dams; in the compulsory displacement of about 250 thousand families, riverside populations directly affected by the reservoirs; and many environmental and social damages.




Sang Su Mentor

  • Sang Su Mentor says :
    Hi Fernanda pioli macedo, this is a mentor Sang Su Lee.

    Although dams provide humans a lot of advantages, they are detrimental to the environment. As you've mentioned, they destroy the natural habitats for many animals and cause frequent flood. However, I believe that the already made damages can be reversible because the healing speed of the environment is surprising as we can observe vividly in the most notorious event such as Chernobyl Nuclear Power Plant Accident. What is really important is to reduce the amount of future dams.

    Green Cheers!
    Posted 28-05-2020 13:07


  • ALOK DHAKAL says :
    I hope you are doing well! Thanks for sharing such a beneficial post.
    Green Cheers!
    Posted 28-05-2020 12:41

Prabha Bhusal

  • Prabha Bhusal says :
    Greeting Fernanda
    Thanks for sharing such beneficial post

    Posted 27-05-2020 18:13

Taehyun Mentor

  • Taehyun Mentor says :
    Hello Fernanda pioli macedo, this is mentor Taehyun!

    You've investigated the environmental costs that the dam can give you! Humans have been studying water-control measures for thousands of years to prevent water damage, and the modern solution is dams. But while dams also have the advantage of storing water, they also have the fatal disadvantage of depleting the surrounding environment. I think balancing is the most important thing to minimize this problem. I think we need a rational balance between environmental costs and the benefits we humans can get.

    Thank you for the report!

    Green cheers!
    Posted 26-05-2020 23:22

Diana Gamazova

  • Diana Gamazova says :
    I read it all and I can agree with all of that, this is an effect yea! Really huge one!
    Green cheers and good day!
    Diana from KZ:))
    Posted 26-05-2020 01:25

Sonika Pariyar

  • Sonika Pariyar says :
    Hello Fernanda!

    I hope you are fine and doing great!

    Eager for rapid development and competition between developed country has degrade environment badly.

    Thanks for sharing!


    Posted 24-05-2020 22:50

Kushal Naharki

  • Kushal Naharki says :
    Hello Fernanda

    I do hope that you are fine and doing great with your works.
    Thank you for your report about Environmental dams and the environmental cost

    Green Cheers from Nepal :)
    Keep writing great reports.
    We are eager to read more reports from you.

    Kushal Naharki

    Posted 24-05-2020 22:01

Samiksha Adhikari

  • Samiksha Adhikari says :
    Thank you for sharing the useful report!!
    Posted 24-05-2020 19:30

Malika  Rustamova

  • Malika Rustamova says :
    Thanks for sharing such beneficial post.
    Posted 24-05-2020 18:30

Asmita Gaire

  • Asmita Gaire says :
    Greetings Fernanda
    I hope you are doing well!
    Environmental and social changes by these activities have to be noted and should be more concerned
    Thank you so much for this report.
    Keep writing
    Green cheers
    Asmita Gaire
    Posted 24-05-2020 12:37

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