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hydroelectrical dams and its mysterious drawbacks |
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by Nhu Duong | 11-12-2020 00:33
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I believe that "hydroelectric dams" is a familiar things to our nowadays world where electricity plays a crucial roles in our life. We are taught that dams bring an enormous benefits to our community but a few of us know the truth that dams bring to us a huge negative impact.
Basically, dams are built on the upstream of the river, people built a huge wall to store the water inside it days by days. On the upstream of the water, they are forests ( 90%), so if they want to build such a large construction, theyhave to cut off the wall and it is the first negative affect of dams. Many trees are cut off in order to build dams, for examle, in my country-Vietnam, so as to build a hundred of dams, thousand of trees were cut down. And, obviously, it ruins a thousand of wild animal's habitants. Secondly, when they store a huge amount of water on the upstrem of the river, it causes some bad impact to the ecosystem in the river, especially is the downstram. Because the water cannot move to the downstream, they cannot bring the alluvial to the downstream. At the same time, water creatures face with problems when they want to move to the downstram of the river. So why people keep using the dams? Why don't they use the solar system electricity instead of using the dams? Actually the cost of those techniques are the same. I hope there will be a fortuantely changes in the future where worldwide nations destroy all their dams and start using other way to produce electricity. |
  
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4 Comments
Hello Nhu!
It's your SJ mentor.
Warm greetings from Korea!
Thank you for sharing your opinion about hydroelectric dams.
Constructing dams destroy the environment, but are used to store water for industries such as agriculture, manufacturing, mining.
In Korea, cutting down forests and installing solar panels are controversial.
I hope we can develop eco-friendly energy without destroying the natural environment.
Keep up with your hard work!
Best regards,
SJ mentor.
Posted 23-12-2020 07:38
Hello Nhu,
this is your mentor WooJoo.
Thank you for sharing such an interesting report.
Hydroelectricity makes up for 20% of the worldwide use, and it has the advantage of being renewable enrgy.
Water dams are helpful for storing water, and it serves as main water supplier in many places.
As you mentioned, it also has disadvantages, and I believe that deforestation should be stopped.
We have to think which is the best way to protect both water and the forest.
I would like to know about your opinion, and what we could do to solve the problems.
Keep sharing
Regards,
WooJoo
Posted 18-12-2020 18:22
Hello Nhu
Greetings from Nepal
Thank you for sharing information about negative impact of dams.We hope people will solar system electricity .
Keep writing keep sharing
Regards
Dolma
Posted 15-12-2020 20:23
Hello NHu ,
I really liked and is also in favour of you .
Solar energy is the sustainable way to repalce it ..
Keep sharing
warm regards
Shobha
Posted 11-12-2020 00:38