Japan has been the nuclear superpower of the 20th and 21st century. But the superfast and high-tech country was jolted after the devastating earthquake, which was followed by a massive tsunami. Now, there is a high alert in the country because of the very high risk of radiation, which can start any time from the damaged nuclear plants.

Soon after the country faced devastating natural calamities, the authorities initiated all possible precautions and they decided to close down all the reactor units. But loss of power led to great difficulty as the cooling towers in some of the plants stopped working. Cooling towers are supposed to work constantly so that the reactor’s radioactive uranium fuel rods do not melt down.

At the time of emergency, officials tried their best to keep the reactors cool and they pumped sea water into some of them, which made them inactive forever. Despite of all efforts, if the officials fail to control the increasing temperature of the reactors, then all the fuel rods will be burnt and it will be dissolved in the environment. Then there will be high level of radiation in the air, covering a huge region and it will leave deadly impact on entire living object for coming so many years.

According to Mark Hibbs, from the Carnegie Endowment's Nuclear Policy Program, this can be regarded as a warning call for other nations that already have or are going to have nuclear power with them. All of these nations need to think and reassess their policies when it comes to global safety after such kind of natural disaster.