Articles

361 Items

Workers shovel waste from a wheat farm into a prototype for a biomass machine

AP/Andy Wong

Journal Article - Proceedings of the National Academy of Sciences of the United States of America

Gasification of Coal and Biomass: A Net Carbon-Negative Power Source for Environment-Friendly Electricity Generation in China

    Authors:
  • Xi Lu
  • Liang Cao
  • Haikun Wang
  • Jia Xing
  • Shuxiao Wang
  • Siyi Cai
  • Bo Shen
  • Qing Yang
  • Chris P. Nielsen
  • Michael B. McElroy
| 2019

Deploying coal-bioenergy gasification systems with carbon capture and storage (CBECCS) provides a promising opportunity for China to realize its carbon mitigation and air pollution abatement goals simultaneously. The authors conducted a comprehensive assessment of CBECCS technology for China, with a focus on plant and fuel configurations (e.g., biomass ratios) and economics, as well as CO2 and greenhouse gas emissions and cobenefits for air quality.

President Ronald Reagan addresses the Center for Strategic International Studies

AP/Charles Tasnadi

Journal Article - Texas National Security Review

When Do Leaders Change Course? Theories of Success and the American Withdrawal from Beirut, 1983–1984

Why did the United States withdraw from Lebanon in February 1984? How did new information shape policymakers' proposals to expand, maintain, or terminate the intervention? Drawing upon declassified records, the authors challenge the conventional narrative that the October 1983 barracks bombing precipitated the American withdrawal from Beirut.

an operator inspects a photolithography tool used to manufacture these solar cells.

Daniel Derkacs/SolarJunction

Journal Article - Research Policy

Governments as Partners: The Role of Alliances in U.S. Cleantech Startup Innovation

Accelerating innovation in clean energy technologies is a policy priority for governments around the world aiming to mitigate climate change and to provide affordable energy. Most research has focused on the role of governments financing R&D and steering market demand, but there is a more limited understanding of the role of direct government interactions with startups across all sectors. The authors  propose and evaluate the value-creation mechanisms of network resources from different types of partners for startups, highlighting the unique resources of government partners for cleantech startups. 

Iran Syria missiles

Associated Press

Journal Article - International Affairs

Iran's Syria Strategy: The Evolution of Deterrence

| Feb. 04, 2019

Iran has been a critical player in the Syrian war since 2011, crafting a complex foreign policy and military strategy to preserve its Syrian ally. What have been the drivers of Iranian decision-making in this conflict? And how has Iranian strategy evolved over the course of the war? This article argues that the logic of deterrence has been fundamental not just for shaping the contours of Iran–Syria relations since the Islamic Revolution of 1979, but also for determining the overall trajectory of Iranian strategy in the Syrian war. The authors outline Iran's decision-making calculus and divide the country's strategy on Syria after the Arab Spring into four primary phases: 1) a ‘Basij’ strategy to establish local militias in Syria; 2) a regionalization strategy to incorporate transnational fighters and militias in the war effort; 3) an internationalization strategy to incorporate Russia and balance the United States; and 4) a post-ISIS deterrence strategy to balance against the United States, Turkey and Israel. Iran's Syria strategy progressively escalated in response to the possible defeat of its ally and the deterioration of its forward deterrence capacities against the United States and Israel. Today, the potential for direct inter-state conflict is rising as proxy warfare declines and Iran attempts to maintain the credibility of its forward deterrence.

Visitors walk across the Yalu River Broken Bridge, right, next to the Friendship Bridge connecting China and North Korea in Dandong in northeastern China's Liaoning province.

(AP Photo/Emily Wang)

Journal Article - Quarterly Journal: International Security

Conflict and Chaos on the Korean Peninsula: Can China’s Military Help Secure North Korea’s Nuclear Weapons?

    Author:
  • Oriana Skylar Mastro
| Fall 2018

China’s military could play a vital role in securing or destroying Pyongyang’s nuclear weapons if the North Korean regime collapsed.

rendering of Carbon Engineering’s air capture design

Courtesy of Carbon Engineering

Journal Article - Joule

A Process for Capturing CO2 from the Atmosphere

    Authors:
  • Geoffrey Holmes
  • David St. Angelo
  • Kenton Heidel
| 2018

The authors describe a process for capturing CO2 from the atmosphere in an industrial plant. The design captures ∼1 Mt-CO2/year in a continuous process using an aqueous KOH sorbent coupled to a calcium caustic recovery loop. They describe the design rationale, summarize performance of the major unit operations, and provide a capital cost breakdown developed with an independent consulting engineering firm. They report results from a pilot plant that provides data on performance of the major unit operations.

Dr. Arun Majumdar

DOE/Ken Shipp

Journal Article - Research Policy

Simultaneous Pursuit of Discovery and Invention in the US Department of Energy

There is a sharp boundary between basic and applied research in the organizational structure of the US Department of Energy (DOE). In this work, the authors consider a branch of DOE that was designed to operate across this boundary: the Advanced Research Projects Agency — Energy (ARPA-E). They hypothesize that much of energy research cannot be neatly categorized as basic or applied and is more productive outside of the confines of the basic/applied dichotomy; ARPA-E provides an opportunity to test that hypothesis.

teaser image

Magazine Article - Vanity Fair

"Trial By Fire”: Will John Bolton Push Trump Toward War in Syria?

| Apr. 09, 2018

According to Nicholas Burns, a former U.S. ambassador who served Bill Clinton and in both Bush administrations, Trump’s approach in Syria has more in common with Obama’s than either would likely admit. “I think that the president’s tweet yesterday was specific enough that he has effectively drawn a red line as well. I think that the president needs to respond to this.”