Policy Briefs & Testimonies

The authors break down the reasons for the United States to stay in the Paris Climate Agreement, arguing that the benefits far outweigh any potential costs. The Agreement gives the United States a seat at the table, and the ability to influence international policy on climate change, showing that the United States is open and willing to cooperate.

The author explores the role of the Montreal Protocol's assessment panel and draws lessons for the UNFCCC.

The authors explore, in particular, the implications for CO2 removal and solar geoengineering of the Paris Agreement's long-term temperature goals, provision for "removals by sinks," and market-based mitigation mechanisms.

The emerging pledge and review approach to international climate policy provides countries with substantial discretion in how they craft their intended emission mitigation contributions. The resulting heterogeneity in mitigation pledges places significant demands for a well-functioning transparency and review mechanism. In particular, the specific forms of intended contributions necessitate economic analysis in order to estimate the aggregate effects of these contributions as well as to permit "apples-to-apples" comparisons of mitigation efforts. This paper discusses the tools that can inform such analyses as well as the institutional needs of climate transparency.

This written testimony to the UK Parliament's Defence Select Committee focuses on the continuing challenges posed to the United Kingdom by the weakness of state institutions and the resultant instability, civil war, and insurgency in the Middle East and North Africa. It argues that the spillover effects of this state weakness threaten the UK directly and the cohesion of its vital European security partnerships.To avoid a cycle of inaction followed by tardy and inappropriate over-reaction, the UK needs to work with its international partners to craft a strategy of sustained engagement towards the region.

Simon Saradzhyan testified before the U.S. House of Representatives' Europe, Eurasia, and Emerging Threats Subcommittee Hearing on "The Threat of Islamist Extremism in Russia," on September 30, 2015. 

In his testimony, Saradzhyan asked: "Can the United States and Russia cooperate against the threat posed by the Islamic State of Iraq and Syria and other international terrorist organizations, even though the bilateral relationship has deteriorated in the wake of the crisis in Ukraine? My answer is they can and they will if they act in their best interest."

A grand bargain would not constitute the entirety of U.S. policy toward China. Unilateral measures and alliances would remain essential components of U.S. policy. When uncertain about a state's motives and goals, a state should pursue a mix of cooperative and competitive policies.

The authors explore a novel approach to evaluating the ambition and fairness of countries' voluntary pledges to reduce emissions. This approach could facilitate negotiations at the upcoming UN climate conference in Lima—and the broader process leading to a new 2015 international climate agreement.

Throughout the postwar period, the Government of Japan's (GOJ) definition and interpretation of collective self-defense and Article 9 of Japan's constitution have played a crucial role in how its leaders develop and employ military power. This issue also has had significant implications for its political and security relationship with the United States.