The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), a UN scientific body, summarizes the Fukushima Daiichi accident and its assessments.

The page states that on March 11, 2011, a major earthquake and tsunami damaged the Fukushima Daiichi nuclear power station, released radioactive material, and led to the evacuation of tens of thousands. It describes this as the largest civilian nuclear accident since the 1986 Chernobyl accident.

Because it documents a single nuclear accident with large evacuation impacts, this item shows nuclear power can have severe safety consequences, so it is not clearly safer than coal or oil.