834 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.

Truck transporting coal on a smoggy day in Beijing

Hans-Peter Hein/Flickr

Analysis & Opinions - Wiley Interdisciplinary Reviews: Climate Change

Key Challenges for China's Carbon Emissions Trading Program

| May 2019

China's national carbon emissions trading program is expected to become the world's largest carbon market and is critical for achieving China's domestic mitigation goals. But China's trading program is likely to face significant challenges, due to its large scale and high complexity. To address these challenges, we provide a series of policy recommendations, including capacity building from central to local levels, wise selection of allowance allocation methods to cope with changing economic realities, and deepening market-oriented reforms in energy sectors and SOEs.

Dabhol Ratnagiri Power Station

Wikimedia CC/Ankur P

Analysis & Opinions - Belfer Center for Science and International Affairs, Harvard Kennedy School

Comments on India's Draft Electricity (Amendment) Act 2018

| Apr. 30, 2019

As the electricity sector undergoes a transformation in India, new challenges and opportunities are coming to the fore. It is imperative that the institutional framework, i.e., laws, rules, and policies, essential for its efficient operation are updated and redesigned. In that regard, the Electricity (Amendment) Act 2018 is a welcome and timely step.

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.

erosion of a dune in front of a house

AP/Virginia Mayo

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

Climate Change and Cape Cod: What We Know. What We Expect. What We Can Do.

| Mar. 29, 2019

Professor John P. Holdren made these remarks for the Harvard Institute for Learning in Retirement at the Marine Biological Laboratory in Woods Hole, Massachusetts, on March 29, 2019.