Tomorrow, April 26, marks 40 years since Chernobyl. The disaster that in 1986 changed the history of nuclear energy, contaminated over 150,000 square kilometres, and forced the evacuation of more than 350,000 people - now has a new source of concern: the ongoing military conflict in Ukraine.

The exclusion zone, where people still cannot live, has become something unexpected: a sanctuary for wildlife. Wolves, deer, lynxes, wild boars, and even Przewalski's horses - a species once on the brink of extinction - now inhabit the abandoned forests and ruins. Nature returned to where humans left. But this is not just a recovery story.

The growing concern comes from a new reality: the "sarcophagus" - the enormous metal structure covering reactor No. 4 - carries new risk in the context of the military conflict. Greenpeace warns that without urgent action, environmental consequences are possible. Military activity in the region and fires that periodically release radioactive particles are putting the safety of all of Europe into question.

40 years later, radiation has no borders - we knew this since 1986. The question is whether Europe has drawn the right lessons: that nuclear facilities and active conflict zones cannot exist in the same sentence.