Energy

731 Items

Presentation - Belfer Center for Science and International Affairs, Harvard Kennedy School

Rapid Climate Change in the Arctic: Why Everybody Should Care

| June 06, 2019

On June 6, 2019, Professor John P. Holdren gave a lecture for students and faculty at Tsinghua University's School of Public Policy and Management on the latest climate science as it affects the Arctic.  He discussed efforts to understand the challenges affecting the region and the global community and what further worldwide actions are required to address these challenges.

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.

Stan Osserman, director of the Hawaii Center for Advanced Transportation Technologies, speaks in front of a new waste to energy facility at Joint Base Pearl Harbor-Hickam, Hawaii.

AP/Audrey McAvoy

Journal Article - Journal of Cleaner Production

Stochastic Cost-benefit Analysis of Urban Waste-to-Energy Systems

Municipal solid waste generation is a rapidly increasing challenge that is leading to severe pollution and environmental degradation in many urban areas of developing countries. This study presents the Waste to Energy Recovery Assessment (WERA) framework, a new quantitative decision support model for initial evaluation and alternative comparisons of different thermochemical treatments of municipal wastes. The framework is used to study waste-to-energy (WtE) systems for Abu Dhabi, Riyadh, Tokyo, and New York. The results show that WtE systems can fulfill only 1.4–3.6% of 2014 electricity demand in the analyzed cases.

Book Chapter - Routledge

Nuclear Disarmament, Nuclear Energy, and Climate Change

| March 2019

Preventing nuclear war and avoiding catastrophic climate change are two of the most basic challenges facing human civilization in the twenty-first century. While these are separate issues, these challenges are linked in several ways, and both may be affected by the future of nuclear energy. For nuclear energy to provide any substantial part of the low-carbon energy needed in the second half of the twenty-first century would require dramatic growth. This chapter provides an overview of the constraints and risks of nuclear energy growth on that scale, and the necessary steps to address them. In particular, use of nuclear energy at that scale would place unprecedented demands on global systems for verification, control, and security for weapons-usable nuclear materials. Deep reductions in nuclear arms and their eventual prohibition will also require new approaches to managing the vast global stocks of weapons-usable nuclear materials. Politically, nuclear energy may not be able to grow on the scale required unless governments and publics are confident that it will not contribute to the spread of nuclear weapons, creating another link between climate mitigation and nuclear nonproliferation and disarmament.

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. 

Dave Johnson coal-fired power plant is silhouetted against the morning sun

AP/J. David Ake

Magazine Article - Fair Observer

Sacrificing Nature Is Not an Option

    Author:
  • Kourosh Ziabari
| Feb. 27, 2019

In this edition of "The Interview," Fair Observer talks to Professor John Holdren, former science adviser to President Barack Obama and director of the White House Office of Science and Technology Policy from 2009 to 2017 about the impacts of global warming on the United States and the government's strategies to combat climate change.

Charging electric Vehicle

Flickr/Sino-German Urbanization Partnership

Journal Article - Elsevier Inc.

Electric Vehicle Recycling in China: Economic and Environmental Benefits

    Authors:
  • Fuquan Zhao
  • Zongwei Liu
  • Han Hao
| January 2019

With the rapid growth of electric vehicles in China, their benefits should be scientifically identified to support the industry development. Although the life cycle benefits of electric vehicles have been analyzed worldwide, the recycling phase has not been fully studied yet, especially in China. Therefore, this study focuses on the economic and environmental benefits of electric vehicle recycling in China. Based on the technology adopted by leading enterprises, the gross income and reduction of energy consumption and greenhouse gas emissions are calculated to reveal the benefits.

View of the crescent moon through the top of the earth's atmosphere. Photographed above 21.5°N, 113.3°E by International Space Station crew Expedition 13 over the South China Sea, just south of Macau (NASA image ID: ISS013-E-54329).

NASA

Discussion Paper

Governance of Highly Decentralized Nonstate Actors: the Case of Solar Geoengineering

| November 2018

We here introduce the idea of highly decentralized solar geoengineering, plausibly done in form of small high-altitude balloons. While solar geoengineering has the potential to greatly reduce climate change, it has generally been conceived as centralized and state deployed. Potential highly decentralized deployment moves the activity from the already contested arena of state action to that of environmentally motivated nongovernmental organizations and individuals, which could disrupt international relations and pose novel challenges for technology and environmental policy. We explore its feasibility, political implications, and governance.

coal-fired power plant in Shuozhou, Shanxi, China

Wikimedia CC/Kleineolive

Journal Article - Nature Sustainability

Managing China's Coal Power Plants to Address Multiple Environmental Objectives

    Authors:
  • Fabian Wagner
  • M.V. Ramana
  • Haibo Zhai
  • Mitchell J. Small
  • Carole Dalin
  • Xin Zhang
  • Denise L. Mauzerall
| November 2018

China needs to manage its coal-dominated power system to curb carbon emissions, as well as to address local environmental priorities such as air pollution and water stress. In this article, the authors examine three province-level scenarios for 2030 that represent various electricity demand and low-carbon infrastructure development pathways.