Finland is set to become the first country to bury spent nuclear fuel in a geological repository known as "Onkalo," where it will be stored safely for 100,000 years. The project, which will begin operations between 2025 and 2026, involves placing highly radioactive waste in watertight copper canisters deep within the bedrock. This initiative is seen as a major milestone for nuclear energy's sustainability and has sparked global interest as a model for long-term nuclear waste disposal. While some praise it as a crucial step for reducing carbon emissions, critics argue it distracts from cleaner, cheaper energy alternatives.