Speaking at a conference on the 20th anniversary of the disaster, he said: "With the vivid and lasting memory of what happened in Chernobyl in 1986 and how massively it affected the surrounding regions we should look ahead and intensify efforts to allow for sustainable development of the territories affected and to give the inhabitants the chance to live a normal life.
"The tragic events of 20 years ago changed environmental thinking all over the world. Issues of nuclear safety, environmental security and environmental interdependence have come to the forefront of the international discussion and co-operation."
The international community had helped concerned governments significantly over the years since 1986, and the OSCE participating States, in a Ministerial Declaration marking the 20th anniversary of the disaster, had stressed the undiminished need to alleviate the consequences of the accident.
While commemorating Chernobyl, we should also recognize the great achievements made since then to make the continent safer, the Secretary General added.
