Do China's EVs really reduce emissions and improve air quality? - with Zhang Shaojun

08/28/23 • 25 min

Today's episode looks at the topic of electric vehicles and their impact on both carbon emissions and urban air quality. China has the world’s largest market for electric vehicles, and it is the largest maker of lithium-ion batteries for electric vehicles manufactured worldwide. Hence, the environmental impact of EVs, even outside of China, often goes back upstream to China.

Our guest is Zhang Shaojun, Associate Professor at the Tsinghua University School of the Environment. His research examines the environmental impacts of emissions from road transportation systems on air quality, climate and public health. Before joining Tsinghua University, he was a Postdoctoral Associate at University of Michigan and Atkinson Postdoctoral Research Fellow at Cornell University.

Shaojun and his colleagues have published two important papers on these topics this year. The first, in the journal PNAS Nexus, looks at the upstream greenhouse gas emissions from battery manufacturing as well as a regional breakdown of power sector emissions from EV charging. The second paper, in Environmental Pollution, looks at the impact of EVs on air quality, employing Tsinghua's CMAQ model to look at how EVs affect ozone and PM2.5, in particular considering the seasonal effects on air chemistry, which relates to the formation of secondary pollution. (Primary emissions refer to pollutants directly emitted from vehicles or power plants, whereas secondary pollutants are formed in the atmosphere through mixing of chemical precursors.)

For further reading:

Fang Wang, Shaojun Zhang, Yinan Zhao, Yunxiao Ma, Yichen Zhang, Anders Hove, and Ye Wu, “Multisectoral drivers of decarbonizing battery electric vehicles in China,” PNAS Nexus, Volume 2, Issue 5, May 2023, https://academic.oup.com/pnasnexus/article/2/5/pgad123/7159885.

Yiliang Jiang, Xinyu Liang, Shaojun Zhang, Zechun Hu, Anders Hove, and Ye Wu, “The future air quality impact of electric vehicle promotion and coordinated charging in the Beijing-Tianjin-Hebei region,” Environ Pollut., 1 September 2023, https://doi.org/10.1016/j.envpol.2023.121928.

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Episode Executive Producer: Anders Hove

For further reading:

Support us on Patreon! https://www.patreon.com/EnvironmentChina

Episode Executive Producer: Anders Hove

Previous Episode

Sustainable forestry and the role of China – with Beibei Yin

Today's podcast looks at the topic of sustainable forestry and the role of China, particularly at the role of Chinese banks. Our guest is Beibei Yin, who researches the intersection of China’s policies on forestry practices abroad and policies on green finance. Two years ago she founded her own consultancy called Bambu Consulting. Previously, she served for many years as Senior Policy Advisor at Global Witness based in London, where she researched topics such as addressing financing from China that leads to deforestation in Southeast Asia, stopping illegal timber trade, and the role of global supply chains in addressing deforestation and illegal timber. She previously joined the podcast in May 2018 to talk about her research following the 9000-mile path of illegal timber from Papua New Guinea to markets.

For further reading:

Beibei Yin, "China’s new green finance guidelines have a deforestation blind spot," 1 August 2022, at https://chinadialogue.net/en/business/chinas-new-green-finance-guidelines-have-a-deforestation-blind-spot/.

Beibei Yin, "Who is Who No. 3 - Chinese Commercial Banks: an NGO Guide," Urgewald, January 2023, at https://www.urgewald.org/sites/default/files/media-files/WhoIsWho-No3-ChineseCommercialBanks.pdf.

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Episode Executive Producer: Anders Hove

Next Episode

The evolution of China’s climate diplomacy – with Taylah Bland

In this episode of our Women in Sustainability series, we are talking about the evolution and underpinnings of China's climate diplomacy. Our guest is Taylah Bland, Schwarzman Fellow at the Asia Society Policy Institute’s Center for China Analysis. She specializes in China’s domestic climate politics and international environmental law. She is a graduate of New York University, Shanghai and Tsinghua University as a Schwarzman Scholar.

In this episode we cover:

China's tendency to boost domestic policy first, before making climate commitments.
China's signing on to climate agreements in the early phases, such as the Kyoto Protocol and Clean Development Mechanism
The importance of China's domestic policy leading up to its Paris commitment
Whether China's climate diplomacy commitments lag domestic trends so much, such as on renewables, that they are more for splashy announcements and soft power
What further domestic policy steps are needed before China can enhance its ambitions for the next round of climate talks