Nuclear power companies rely on cheap enriched uranium made in Russia. That geopolitical dilemma is intensifying as climate change underscores the need for emissions-free energy.
The official met with President Volodymyr Zelensky to discuss the Zaporizhzhia plant, amid worries that a Ukrainian offensive could raise the already-high risk of disaster.
The Zaporizhzhia nuclear plant, the largest in Europe, has already been hit by shelling, and the United Nations chief, warning of disaster, called for a demilitarized zone around it.