Hydro-electric power.
On the face of it, hydro-electric power looks like a green way of producing energy, but the damage to the environment involved in creating dams is maybe not such a good idea.
Some communities even lose their homes as the result of the creation of dams.
Also, dams always look dangerous. They could be vulnerable to attack.
So, I can't say I am ecstatic about them as a solution to energy problems.
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