Are nuclear power-plants the proper solution to confront the challenges of nature conservation?

Solar energy, wind energy and hydropower are the main solutions suggested to cut down greenhouse gasses, thus called ''green energy'' from renewable resources. There is no doubt that greenhouse emissions should be reduced, yet, the consequences of using various substitutes to polluting sources are rarely considered. Even when it is acknowledged that other measures, mainly improving existing technologies to reduce greenhouse gases can be highly effective, renewable sources are recommended, assuming that there is no cost in using these measures (Governmental report, 2013). But, the cost of all substitute-renewables can be very high. Thus, by solving one environmental problem we may create another environmental problem, not necessarily less acute