Reports & Papers

Decarbonizing existing buildings is a key component of greenhouse gas emission reduction strategies, but private investors have been slow to finance residential decarbonization projects because of a range of barriers. Authors Chang, Fornara, and Sanghvi argue that green banks could play a major role in unlocking public and private financing for projects that are currently financially unviable. 

This brief examines the national challenges related to deploying and scaling infrastructure to transport CO₂ from capture sites to storage or utilization sites at a scale consistent with achieving net-zero by 2050.

Technology companies and governments have spent the past decade trying to better address the evolving threat of terrorist and violent extremist content online (TVEC). This paper examines how effective these efforts have been, where we are today in managing the problem, and wherein lie gaps for improvement.

In the past, strategic surprise has often stemmed from a failure of imagination. Most intelligence failures are rooted in a lack of foresight or early warning of impending events. Blue sky thinking seeks to prevent these surprises by devoting more attention not just to known risks and likely scenarios, but also to low probability, high impact events. In an unprecedented step in forging ongoing global collaboration, 129 global experts gathered in Amman, Jordan, in December 2021. The conference was held under the auspices of Jordan’s Aqaba Process and facilitated by representatives from the Harvard Kennedy School Belfer Center’s Intelligence Project. Attendees included intelligence officers, diplomats, military officers, private sector practitioners, and academics representing 29 countries, 5 continents, and 68 government and private sector organizations. Through presentations and discussion under Chatham House Rules, the conference facilitated an open exchange of ideas on the possible next big threats from terrorism and on strategies for moving forward.

This paper provides an overview on the main impacts of biofuels production on water resources within the United States, with an emphasis on the corn-based ethanol market and the agricultural stage. The following issues are examined:

• the relationship between biofuel production and water availability;
• trends and policy options for future biofuel production and the tradeoffs for water scarcity;
• technological changes in transportation fleet, with consequential effects on biofuels demand and water resources;
• considerations for policy makers who seek to reduce the future impact of biofuels on water sustainability.

Contemplating the causes and effects of 9/11, as well as the experiences of those on the ground that day, yields useful insights into tackling today’s intelligence and policy challenges. This report is derived from 9/11: Intelligence and National Security Twenty Years Later, a full-day conference hosted by the Belfer Center’s Intelligence Project that examined the impact of the 9/11 through personal stories and policy reflections. It explores how strategic intelligence on Al Qaeda’s intentions failed to lead to policy changes that could have prevented the attacks on 9/11. It also examines how the U.S. can draw on the experience of 9/11 as it faces the specter of great power competition with China against the backdrop of globalized, existential threats posed by climate change and novel disease outbreaks like COVID-19. It also explores the critical nexus between intelligence warning and policy action. More broadly, the twentieth anniversary of 9/11 is an opportunity to reflect on who we are as a nation and who we want to be in confronting violent extremism—both at home and around the world.

Innovation will be critical in the transition to a low-carbon economy. Meeting the goals of the Paris Climate Agreement requires reworking our existing energy infrastructure, but it is easier said than done. Rethinking energy systems hinges on reconciling the interests of many existing stakeholders: investors, banks, governments, energy companies, and consumers. Developing and fostering new ideas is the first step toward illuminating the frontiers of what is possible.