Air Pollution, Greenhouse Gases & Climate

Peter Sherman, Xinyu Chen, and Michael B. McElroy. 2017. “Wind-generated electricity in China: Decreasing potential, inter-annual variability, and association with climate change.” Scientific Reports, 7. Publisher's VersionAbstract
China hosts the world’s largest market for wind-generated electricity. The financial return and carbon reduction benefits from wind power are sensitive to changing wind resources. Wind data derived from an assimilated meteorological database are used here to estimate what the wind generated electricity in China would have been on an hourly basis over the period 1979 to 2015 at a geographical resolution of approximately 50 km × 50 km. The analysis indicates a secular decrease in generating potential over this interval, with the largest declines observed for western Inner Mongolia (15 ± 7%) and the northern part of Gansu (17 ± 8%), two leading wind investment areas. The decrease is associated with long-term warming in the vicinity of the Siberian High (SH), correlated also with the observed secular increase in global average surface temperatures. The long-term trend is modulated by variability relating to the Pacific Decadal Oscillation (PDO) and the Arctic Oscillation (AO). A linear regression model incorporating indices for the PDO and AO, as well as the declining trend, can account for the interannual variability of wind power, suggesting that advances in long-term forecasting could be exploited to markedly improve management of future energy systems.
2017 Nov 28

Film Screening of "Plastic China" and Q&A with Director WANG Jiuliang

6:30pm to 8:45pm


CGIS South, Tsai Auditorium, 1730 Cambridge Street, Cambridge, MA

plastic china partial poster

After the screening, Director WANG Jiuliang will attend via Skype for a Q&A with the audience moderated by Professor ZHANG Ling of Boston College and the Fairbank Center for Chinese Studies. The discussion will be interpreted by Canaan Morse, a Ph.D. candidate in Chinese Literature at Harvard. ... Read more about Film Screening of "Plastic China" and Q&A with Director WANG Jiuliang

MEP meeting

High-Level Meetings with Ministers Xie and Li

August 30, 2017

On August 4, China’s lead official on climate change, Minister XIE Zhenhua, hosted a research and policy consultation with Profs. Mike McELROY, Steve WOFSY, executive director Chris NIELSEN, and Project alumni Dr. ZHANG Hongjun (Holland & Knight, LLP) and Prof. LU Xi (Tsinghua University) at his offices in Beijing. Discussion topics included the state of U.S.-China engagement on climate and the growing role of subnational governments, disparate regional capacities for carbon control within China... Read more about High-Level Meetings with Ministers Xie and Li

Haikun Wang, Yanxu Zhang, Xi Lu, Weimo Zhu, Chris P. Nielsen, Jun Bi, and Michael B. McElroy. 2017. “Trade‐driven relocation of air pollution and health impacts in China.” Nature Communications, 8, 738. Publisher's VersionAbstract
Recent studies show that international trade affects global distributions of air pollution andpublic health. Domestic interprovincial trade has similar effects within countries, but has notbeen comprehensively investigated previously. Here we link four models to evaluate theeffects of both international exports and interprovincial trade on PM2.5pollution and publichealth across China. We show that 50–60% of China’s air pollutant emissions in 2007 wereassociated with goods and services consumed outside of the provinces where they wereproduced. Of an estimated 1.10 million premature deaths caused by PM2.5pollutionthroughout China, nearly 19% (208,500 deaths) are attributable to international exports. Incontrast, interprovincial trade leads to improved air quality in developed coastal provinceswith a net effect of 78,500 avoided deaths nationwide. However, both international exportand interprovincial trade exacerbate the health burdens of air pollution in China’s lessdeveloped interior provinces. Our results reveal trade to be a critical but largely overlookedconsideration in effective regional air quality planning for China.

China Project Featured on Nature Index 2016 Collaborations

October 30, 2016

The China Project is featured in the cover article of Nature Index 2016 gauging the success of international research collaborations. Quoting Mike MCELROY and Bill MUNGER, the article highlights Project-supported research on the carbon cycle, based on observations at the China Project atmospheric station near Beijing as well as other sites in U.S. and Chinese forests. There is also an accompanying short video that includes interviews with senior research fellow Bill MUNGER and students LIU Jialin and Archana DAYALU on-site at the beautiful Harvard Forest.
See also: Multimedia
... Read more about China Project Featured on Nature Index 2016 Collaborations