What about the new lakes generated by the dams? What about using these lakes as water reservoir needed for agriculture? There are certainly different kinds of

What about the new lakes generated by the dams? What about using these lakes as water reservoir needed for agriculture? There are certainly different kinds of hydropower. Some generating a large lake for a little power output while others in the mountains of an area with heavy rainfall generate a lot of power without flooding a large area. Yet, it seems that all hydropower projects are either labelled "good" or "bad".