People have turned to using nuclear power, however, when reactors malfunction, they negatively affect the environment and the human race. Fukushima and Chernobyl are examples of reactors malfunctioning and affecting the world around them. While both were rated a seven out of seven on the International Nuclear and Radiological Event Scale (INES), they had drastically different causes and effects. In 1986, workers conducted a test on the unit four reactor without taking necessary safety precautions, resulting in explosions that almost destroyed it. The reactor was a RBMK-1000 which is a graphite moderated pressure tube type reactor. Its fuel was slightly enriched uranium dioxide (2% U-235). Thirty operators and firemen were killed within three