After four weeks, the NPT Review Conference concluded without consensus, with Russia blocking approval for the final document. Tom Collina sits down with Gaukhar Mukhatzhanova from the Vienna Center for Disarmament and Non-Proliferation to discuss what this setback to RevCon means for the future of the NPT and arms control.

On Early Warning, Lauren Billet speaks with Dr. Alan Robock, climate scientist and professor from Rutgers University. His new research paper with Dr. Lili Xia warns us that there is no such thing as a limited nuclear war. He discusses the key findings of the report and the humanitarian and environmental consequences that will result from a nuclear conflict between two states.