Reports & Papers

Authors Christoph Böhringer and Thomas Rutherford evaluate the efficacy of imposing carbon tariffs on U.S. imports as an alternative to U.S. participation in the Paris Agreement. The authors warn that carbon tariffs on the United States could lead to a tariff war that ultimately hurts China, in particular, and the European Union more than the United States.

The authors explore several approaches to an ambitious climate agreement in Paris in late 2015—including through carbon pricing.

This discussion paper explores the potential adverse impacts of unilateral climate policies on domestic energy-intensive and trade-exposed industries.

The authors draw upon the past decade of experience with carbon markets to test a series of hypotheses about why governments have demonstrated a preference for linking.

A treaty satisfies what we call International Paretianism if it advances the interests of all states that join it, so that no state is made worse off. The principle might seem obvious, but it rules out nearly all the major proposals for a climate treaty, including proposals advanced by academics and by government officials. We defend International Paretianism, and for that reason urge commentators in the debate over climate justice to abandon efforts to right past wrongs, redistribute wealth, and achieve other abstract ideals through a climate treaty

In pursuit of a workable successor to the Kyoto Protocol, this study offers a framework of formulas that produces precise numerical targets for emissions of carbon dioxide (CO2) and other greenhouse gases, in all regions of the world in all decades of this century....Firms, consumers, and researchers base their current decisions to invest in plant and equipment, consumer durables, or new technological possibilities on the expected future price of carbon: If government commitments are not credible from the start, then they will not raise the expected future carbon price.

In the Foreword to this paper by Andrei Kokoshin, Belfer Center Director Graham Allison writes: "The global nuclear order is reaching a tipping point. Several trends are advancing along crooked paths, each undermining this order. These trends include North Korea’s expanding nuclear weapons program, Iran’s continuing nuclear ambitions, Pakistan’s increasing instability, growing doubts about the sustainability of the nonproliferation regime in general, and terrorist groups’ enduring aspirations to acquire nuclear weapons. Andrei Kokoshin, deputy of the State Duma and former secretary of Russia’s Security Council, analyzes these challenges that threaten to cause the nuclear order to collapse in the following paper."

Researchers from the United States and Russia have issued a joint assessment of the global threat of nuclear terrorism, warning of a persistent danger that terrorists could obtain or make a nuclear device and use it with catastrophic consequences. The first joint threat assessment by experts from the world’s two major nuclear powers concludes: “If current approaches toward eliminating the threat are not replaced with a sense of urgency and resolve, the question will become not if but when, and on what scale, the first act of nuclear terrorism occurs.”

This paper proposes a new architecture for international climate policy that might usefully be considered by delegates at COP 17 in Durban. It highlights a top-down approach that is designed to produce a fair distribution of burdens across countries, while achieving objectives of: (a) economic development; (b) decreasing wealth inequality; and (c) emission reductions consistent with holding the expected increase in global average temperature to 2 degrees Celsius. In addition, this discussion paper discusses several key design elements that will be important, especially from the perspective of developing countries, to the success of COP 17 and subsequent international climate negotiations. These design elements include agreements on burden sharing, choice of policy instruments, financial mechanisms and technology transfer, penalties for noncompliance, and linkages between trade and climate change.