South Asia

All the world's nuclear-armed states (except for North Korea) have begun modernizing and upgrading their arsenals, leading many observers to predict that the world is entering a new nuclear arms race. While that outcome is not yet inevitable, it is likely, and if it happens, the new nuclear arms race will be different and more dangerous than the one we remember. More nuclear-armed countries in total, and three competing great powers rather than two, will make the competition more complex. Meanwhile, new non-nuclear weapon technologies — such as ballistic missile defense, anti-satellite weapons, and precision-strike missile technology — will make nuclear deterrence relationships that were once somewhat stable less so.

The 2016 nuclear security summit was a pivotal moment for the decades-long effort to secure nuclear material around the globe. More than 50 national leaders gathered in Washington for the last of four biennial meetings that have led to significant progress in strengthening measures to reduce the risk of nuclear theft.

When do states acquire nuclear weapons? History shows that only two types of states decide that the bomb is essential to their security: 1) very powerful states; and 2) weak states that lack ironclad security guarantees.

Critics of ethnofederalism—a political system in which federal subunits reflect ethnic groups’ territorial distribution—argue that it facilitates secession and state collapse. An examination of post-1945 ethnofederal states, however, shows that ethnofederalism has succeeded more often than not.

Policymakers have long focused on preventing nuclear weapons proliferation by controlling technology. Even developing countries, however, may now possess the technical ability to create nuclear weapons. The history of gas centrifuge development in twenty countries supports this perspective. To reduce the demand for nuclear weapons, policymakers will have look toward the cultural, normative, and political organization of the world.

Recent national trends in investments in global energy research, development, and demonstration (RD&D) are inconsistent around the world. Public RD&D investments in energy are the metric most commonly used in international comparative assessments of energy-technology innovation, and the metric employed in this article. Overall, the data indicate that International Energy Agency (IEA) member country government investments have been volatile: they peaked in the late 1970s, declined during the subsequent two decades, bottomed out in 1997, and then began to gradually grow again during the 2000s.

New Harvard Kennedy School research finds that energy research, development, and demonstration (ERD&D) funding by governments and 100 percent government-owned enterprises in six major emerging economies appears larger than government spending on ERD&D in most industrialized countries combined. That makes the six so-called BRIMCS countries—Brazil, Russia, India, Mexico, China, and South Africa—major players in the development of new energy technologies. It also suggests there could be opportunities for cooperation on energy technology development among countries.

"...[A] primary goal in the next decades must be to remove this risk of near global self-destruction by drastically reducing nuclear forces to a level where this outcome is not possible, but where a deterrent value is preserved — in other words, to a level of minimum deterrence. This conception was widely discussed in the early years of the nuclear era, but it drowned in the Cold War flood of weaponry. No matter how remote the risk of civilization collapse may seem now — despite its being so vivid only a few decades ago — the elimination of this risk, for this century and centuries to come, must be a primary driver for radical reductions in nuclear weapons."

Managing the dangers of global climate change will require developing countries to participate in a global climate regime. So far, however, those nations have been nearly universal in their refusal to make commitments to reduce growth in their greenhouse gas emissions. This paper describes how a set of international "Climate Accession Deals" could encourage large policy shifts that are in developing countries' interests and also reduce greenhouse gas emissions.

Dr. Ashton B. Carter testifies before the 9/11 Public Discourse Project's hearings on "The 9/11 Commission Report: The Unfinished Agenda."