There is no more damn need for dams when it comes to harnessing water for hydroelectricity. A company has created and tested underwater turbines that have little effect on the environment. VOA News has an excellent article on why dams are problematic and why these new underwater turbines are a far better way to produce hydroelectricity.
“Taylor says one of the advantages is that it doesn’t damage marine life. “There is lots of room to swim around, they can go through, not a problem. It would be like us walking through a revolving door.””