New York, 21 October 2026

Mr. Chair,

As the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) marks its seventieth anniversary, my Delegation would like to express its appreciation for its contribution to the advancement of scientific understanding of the effects of ionizing radiation, and for its work in protecting human health and the environment.

My Delegation welcomes, in particular, the publication of the Committee’s updated assessment of public exposure to ionizing radiation, including exposure arising from nuclear weapons testing, nuclear power generation and nuclear accidents. These findings highlight the importance of rigorous scientific monitoring, especially in areas affected by radioactive contamination. This helps to better understand long-term exposure and support the implementation of appropriate protective measures for affected populations.

Mr. Chair,

The harmful and long-lasting effects of ionizing radiation resulting from the use and testing of nuclear weapons, especially on women, children, the unborn, as well as among indigenous peoples, are a matter of deep concern. The consequences of radioactive contamination can persist for generations, affecting not only human health but also the environment and the livelihoods of affected communities.

In this regard, it is important to provide appropriate assistance to affected populations and to pursue environmental remediation, with particular attention to those in the most vulnerable situations.

Mr. Chair,

The Holy See remains deeply concerned about the risks posed to nuclear facilities by armed conflict. This is evident from the ongoing precarious situation at the Zaporizhzhia Nuclear Power Plant and the damage to the New Safe Confinement Shield at Chernobyl. These developments underscore the serious dangers that military activities pose to nuclear safety and security. Any incident resulting in the uncontrolled release of radioactive materials could have devastating consequences for civilian populations and the environment, with effects potentially extending beyond national borders. In situations of armed conflict, it is of crucial importance to ensure the safety and security of nuclear facilities, in order to prevent further humanitarian and environmental harm.

Furthermore, the Holy See reiterates its call for the universalization and full implementation of the Treaty on the Prohibition of Nuclear-Weapons (TPNW), as well as the entry into force of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). These are important steps in preventing the humanitarian and environmental consequences of nuclear weapons and nuclear testing.

Thank you, Mr. Chair.