FAS

Ethiopia Ratifies Nuclear Test Ban Treaty

08.09.06 | 1 min read | Text by Steven Aftergood

Ethiopia this week became the 135th country to ratify the comprehensive nuclear test ban treaty (CTBT), which prohibits the explosive testing of nuclear weapons.

To enter into force, the CTBT must be ratified by 44 States listed in Annex 2 of the Treaty. So far, 34 of those States have done so.

See “Ethiopia ratifies Comprehensive Nuclear-Test-Ban Treaty,” CTBT Organization news release, August 9.

Background, history and current status of the proposed test ban may be found in “Nuclear Weapons: Comprehensive Test Ban Treaty” (pdf), Congressional Research Service, updated June 21, 2006.

publications
See all publications
Environment
Blog
I Want to Talk About Solar Geoengineering and You Should Too!

If you’re new to the climate intervention space, welcome! The TL;DR: if we can’t stop the most catastrophic impacts of climate change with current tools quickly enough, then we need a bigger toolbox.

06.02.26 | 6 min read
read more
Environment
Blog
Disaster Policy Nerds Explain the Good, Bad, and Ugly in FEMA Review Council Report

After months of delay, the council tasked by President Trump to review the FEMA released its final report. Our disaster policy nerds have thoughts.

05.21.26 | 8 min read
read more
Global Risk
Press release
Federation of American Scientists, Future of Life Institute Present Converging Risks Report, AI Impact Awards at Gala

FAS and FLI partnered to build a series of convenings and reports across the intersections of artificial intelligence (AI) with biosecurity, cybersecurity, nuclear command and control, military integration, and frontier AI governance. This project brought together leaders across these areas and created a space that was rigorous, transpartisan, and solutions-oriented to approach how we should think about how AI is rapidly changing global risks.

05.20.26 | 9 min read
read more
Emerging Technology
Blog
Closing the Strategic Capital Gap: The Case for Modernizing the Export-Import Bank

Investment should instead be directed at sectors where American technology and innovation exist but the infrastructure to commercialize them domestically does not—and where the national security case is clear.

05.20.26 | 3 min read
read more