Dams have many positive and negative impacts on nature, and the people that live around the river. In my opinion, I think that the positives out weight the negative impacts, therefore, humans should continue to construct dams. Reasons that they should do so is because a dam controls flooding. Flooding, every year, ruins the lives for so many. People loose the homes, their valuables and sometimes even their lives, so if there is a way to stop it from happening, why not. Now, the negative impacts are kind of sever, for example, species like fish will not be able to cross to the other side of the river because the dam blocks it, but are the lives of people not more important than fish? Now, I am not saying that fish aren’t important but there are other things that can be done to protect them. Another positive to building dams is electricity. Dams create hydropower which is electricity. That electricity is cheeper and is a renewable source of energy. Therefore, I believe that humans should continue to contruct dams because it saves life and money and can be used as a source of power.