Environment & Climate Change

171 Items

A Chinese power plant.

Wikimedia CC/Tobixen

Journal Article - Journal of Cleaner Production

Changing Carbon Content of Chinese Coal and Implications for Emissions of CO2

| September 2018

The changing carbon content of coal consumed in China between 2002 and 2012 is quantified using information from the power sector. The carbon content decreased by 7.7% over this interval, the decrease particularly pronounced between 2007 and 2009. Inferences with respect to the changing carbon content of coal and the oxidation rate for its consumption, combined with the recent information on coal use in China, are employed to evaluate the trend in emissions of CO2. Emissions are estimated to have increased by 158% between 2002 and 2012, from 3.9 Gt y-1 to 9.2 Gt y-1.

solar panels are seen near the power grid in northwestern China

AP/Ng Han Guan, File

Journal Article - Environmental Research Letters

Climate, Air Quality and Human Health Benefits of Various Solar Photovoltaic Deployment Scenarios in China in 2030

    Authors:
  • Junnan Yang
  • Xiaoyuan Li
  • Fabian Wagner
  • Denise L. Mauzerall
| 2018

Solar photovoltaic (PV) electricity generation can greatly reduce both air pollutant and greenhouse gas emissions compared to fossil fuel electricity generation. The Chinese government plans to greatly scale up solar PV installation between now and 2030. However, different PV development pathways will influence the range of air quality and climate benefits. Benefits depend on how much electricity generated from PV is integrated into power grids and the type of power plant displaced. Using a coal-intensive power sector projection as the base case, the authors estimate the climate, air quality, and related human health benefits of various 2030 PV deployment scenarios.

visitors tours the BYD Co. booth displaying an electric vehicle with a charger at the Shanghai International Auto Show

AP/Andy Wong

Paper - SAE International

Recycling-Based Reduction of Energy Consumption and Carbon Emission of China's Electric Vehicles: Overview and Policy Analysis

    Authors:
  • Fuquan Zhao
  • Zongwei Liu
  • Han Hao
| Apr. 03, 2018

Electric vehicles maintain the fastest development in China and undertake the responsibility of optimizing energy consumption and carbon emission in the transportation field. However, from the entire life cycle point of view, although electric vehicles have a certain degree of energy consumption and carbon emission reduction in the use phase, they cause extra energy consumption and carbon emission in the manufacturing phase, which weakens the due environmental benefits to some extent. The recycling of electric vehicles can effectively address the issue and indirectly reduce the energy consumption and carbon emission in the manufacturing phase. China is setting up the recycling system and strengthening regulation force to achieve proper energy consumption and carbon emission reduction benefits of electric vehicles.

A woman wears a face mask as she looks at her smartphone while walking along a street in Beijing

AP

Journal Article - Applied Energy

Potential Co-benefits of Electrification for Air Quality, Health, and CO2 Mitigation in 2030 China

    Authors:
  • Junnan Yang
  • Xi Lu
  • Denise L. Mauzerall
| May 15, 2018

Electrification with decarbonized electricity is a central strategy for carbon mitigation. End-use electrification can also reduce air pollutant emissions from the demand sectors, which brings public health co-benefits. In this article, the authors focus on electrification strategies for China, a country committed to both reducing air pollution and peaking carbon emissions before 2030. Considering both coal-intensive and decarbonized power system scenarios for 2030, they assess the air quality, health, and climate co-benefits of various end-use electrification scenarios for the vehicle and residential sectors relative to a non-electrified coal-intensive business-as-usual scenario.

Electric Vehicle Battery Model

Wikimedia CC/ DKMcLaren

Journal Article - Applied Energy

Cradle-to-gate Greenhouse Gas Emissions of Battery Electric and Internal Combustion Engine Vehicles in China

    Authors:
  • Fuquan Zhao
  • Zongwei Liu
  • Han Hao
| October 2017

Electric drive vehicles are equipped with totally different propulsion systems compared with conventional vehicles, for which the energy consumption and cradle-to-gate greenhouse gas emissions associated with vehicle production could substantially change. In this study, the life cycle energy consumption and greenhouse gas emissions of vehicle production are compared between battery electric and internal combustion engine vehicles in China's context.

Report

Foundations of Decarbonization in China: A Post-2030 Perspective

| July 2017

The Harvard-Tsinghua Workshop on Low-Carbon Development and Public Policy is the fourth annual joint workshop between the Harvard Kennedy School’s Environment and Natural Resources Program and the Center for Science, Technology, and Education Policy at Tsinghua University. The workshop convened leading experts on climate and energy from the United States and China at Tsinghua University in Beijing, China, on June 1-2, 2017.

The workshop was divided into five sessions. The first two sessions focused on the scope of the climate problem and the options for addressing it. The following three sessions explored specific options: renewable energy, nuclear power, and air pollution regulation.

Shanghai

Creative Commons

Journal Article - Environmental Research Letters

Air Quality and Climate Benefits of Long-distance Electricity Transmission in China

    Authors:
  • Jiahai Yuan
  • Yu Zhao
  • Meiyun Lin
  • Qiang Zhang
  • David G. Victor
  • Denise L. Mauzerall
| 2017

China is the world's top carbon emitter and suffers from severe air pollution. It has recently made commitments to improve air quality and to peak its CO2 emissions by 2030. The authors examine one strategy that can potentially address both issues—utilizing long-distance electricity transmission to bring renewable power to the polluted eastern provinces. 

Visitors in a park gesture at each other near chimneys spewing smoke in Beijing, China

AP

Journal Article - Science of the Total Environment

Substantial Air Quality and Climate Co-benefits Achievable Now with Sectoral Mitigation Strategies in China

    Authors:
  • Junnan Yang
  • Fabian Wagner
  • Denise L. Mauzerall
| November 2017

China is the world's top carbon emitter and suffers from severe air pollution. The authors examine near-term air quality and CO2 co-benefits of various current sector-based policies in China. Their analysis hence highlights the importance of even modest industrial energy efficiency improvements and air pollution control technology upgrades for air quality, health and climate benefits in China.