One terrawatt-hour is roughly equivalent to the annual energy consumption of 12,400 US citizens. Although deaths from accidents and air pollution have been combined, it’s important to note that air-pollution related deaths are dominant. In the case of brown coal, coal, oil and gas, they account for greater than 99% of deaths, as well as 70% of nuclear-related deaths4, and all biomass-related deaths.

We can see that brown coal and coal rate the worst when it comes to energy-related fatalities. Coal-fired power plants are a key source of sulphur dioxide and nitrogen oxides, key precursors to ozone and particulate matter (PM) pollution, which can have an impact on human health, even at low concentrations.

Climatologist James Hansen argued last month, “Nuclear power paves the only viable path forward on climate change.” He is wrong. As the Nuclear Energy Agency (NEA) and International Energy Agency (IEA) explained in a major report last year, in the best-case scenario, nuclear power can play a modest, but important, role in avoiding catastrophic global warming if it can solve its various nagging problems — particularly high construction cost — without sacrificing safety.

Why James Hansen Is Wrong About Nuclear Power
http://thinkprogress.org/climate/2016/01/07/3736243/nuclear-power-climate-change/