Why did the Chernobyl nuclear disaster have global implications?

The Chernobyl nuclear disaster had global implications due to its widespread release of radioactive materials, which affected not only the Soviet Union but also large parts of Europe and beyond. It raised awareness of the potential dangers of nuclear energy, leading to changes in policies and regulations worldwide. The incident also prompted international cooperation in nuclear safety and emergency response, highlighting the need for better safety protocols and communication among nations. Additionally, it instilled public fear and skepticism towards nuclear energy, influencing energy policies in many countries.