Articles

33 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.

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.

What Is the Cyber Offense-Defense Balance? Conceptions, Causes, and Assessment

AP

Journal Article - Quarterly Journal: International Security

What Is the Cyber Offense-Defense Balance? Conceptions, Causes, and Assessment

    Author:
  • Rebecca Slayton
| Winter 2016/17

Does cyberspace favor the offense, as many analysts and policymakers claim? Three factors undermine any cyber offensive advantage, as demonstrated in a cost-benefit analysis of the Stuxnet operation against Iran. First, any measurement of the offense-defense balance must consider a cyber operation’s value as well as its cost to both sides. Second, organizational capabilities play a significant role in determining the balance. Third, offensive advantages decline when attackers target physical infrastructure rather than information networks.

A rural stove using biomass cakes, fuelwood and trash as cooking fuel... It is a major source of air pollution in India, and produces smoke and numerous indoor air pollutants at concentrations 5 times higher than coal.

Wikipedia

Journal Article - Nature Energy

Energy decisions reframed as justice and ethical concerns

| 6 May 2016

Many energy consumers, and even analysts and policymakers, confront and frame energy and climate risks in a moral vacuum, rarely incorporating broader social justice concerns. Here, to remedy this gap, we investigate how concepts from justice and ethics can inform energy decision-making by reframing five energy problems — nuclear waste, involuntary resettlement, energy pollution, energy poverty and climate change — as pressing justice concerns.

teaser image

Journal Article - Climatic Change

Expert Views — and Disagreements — About the Potential of Energy Technology R&D

| June 2016

In order to make R&D funding decisions to meet particular goals, such as mitigating climate change or improving energy security, or to estimate the social returns to R&D, policy makers need to combine the information provided in this study on cost reduction potentials with an analysis of the macroeconomic implications of these technological changes. The authors conclude with recommendations for future directions on energy expert elicitations.

Oil Pump Jack between Seminole and Andrews, West Texas

Paul Lowry, Creative Commons

Newspaper Article - The Wall Street Journal

What Will the U.S. Energy Industry Look Like Over the Next Five Years?

| November 15, 2015

Professor Meghan O'Sullivan was interviewed on November 15th, 2015 for a Wall Street Journal special section on energy, discussing the rapid transformation of the American energy sector in light of low fuel prices, new climate policies and other factors.

The Smoky Hills Wind Farm as seen from Interstate 70 in Kansas, 2 November 2009.

Creative Commons

Journal Article - Energy & Environmental Science

How Much Bulk Energy Storage is Needed to Decarbonize Electricity?

| 2015

High cost and technical immaturity of bulk (multi-hour) electricity storage (BES) systems are often cited as major hurdles to increasing the penetration of intermittent renewables. The authors use a simple model to assess the economics of BES under carbon emissions constraints.

Journal Article - Reference Module in Earth Systems and Environmental Sciences

Technology Innovation and Energy

Energy technology innovation is the key to driving the technological changes that are necessary to meet the challenge of mitigating energy-related greenhouse gas emissions to avoid 'dangerous climate change.' Success in innovation requires the enhancement of public investment in the innovation process, the creation of markets for low-carbon technologies through stronger climate policies, and a continued focus on energy access and equity.

Silhouetted against the sky at dusk, emissions spew from the smokestacks at Westar Energy's Jeffrey Energy Center coal-fired power plant near St. Mary's, Kansas, Sept. 25, 2010.

AP Photo

Journal Article - Democracy: A Journal of Ideas

What Next on Climate?

| Summer 2011

The effort to address climate change stumbled with the failure to pass cap-and-trade. What should happen now? Five experts, including the Harvard Project's Joe Aldy, discuss the future of U.S. climate and energy policy.