Nuclear energy has an impact on geopolitics and international relations. If used as an energy resource for producing electricity, it can help mankind but if used into weapons, it can destroy the world.
One school of thought is critical, nonetheless, which states that the stakes are so high that nothing positive can come out of it. Case in point Fukushima nuclear accident in Japan. In 2011, an earthquake, followed by a tsunami, interrupted the working of the reactors in such a way that it caused a major nuclear accident.
Yet climate change issues and rising greenhouse effects have paved the way for nuclear power that does not produce direct carbon dioxide emissions. However, the disposal of nuclear waste has become a challenge for policymakers.
The video here shows the timeline and history of nuclear energy.