When the entire fuel cycle is considered then Nuclear...
Renewables are mostly unproven, experimental technologies being developed on a small-scale basis that is not ready to take up the gap to move away from fossil fuels under climate change agreements
It is useful to deal with the idea that nuclear is a CO2 free fuel. When the entire fuel cycle is considered then Nuclear power is a direct contributor to When the entire fuel cycle is considered then Nuclear power is a direct contributor to climate change emissions[i]. It is then possible to add in additional carbon footprints such as the emissions caused by building and staffing a large plant. It is also a question worth asking as to when climate change-related pollution became the only standard. There are plenty of other ways of polluting the environment and belching out irradiated gases into the ocean would seem to meet that standard. [i] http://www.nirs.org/climate/climate.htm