I don't really think it is especially in comparison to petrochemicals, but hydroelectric dams also isn't my favorite green energy. They displace too much matter while also reducing the wildlife of the project area for me to feel comfortable with it. I think perhaps there's further ways water could be used to make electricity that are underestimated or even unknown. I like "old-school" hydroelectrics, watermills. In my opinion this is an example really of individualistic green energy being a better environmental decision on the whole. Such will reduce the damage of our energy needs. Power to the people.