Comment by Gondolin

Some plants have a closed cooling system. And the million figure count fish eggs, which is somewhat cheating. And if you take into account the reduced wildlife area due to solar panel and wind farm needing more space than nuclear plants, I stand by my statement that nuclear is more environmentally friendly per GWh (but I do concede that solar panels in desert and offshore wind turbines are even better than nuclear for the wildlife).

But in all this we should remember that environmental impact of fossil based electricity is an order of magnitude worse anyway.