Preprints
https://doi.org/10.5194/acp-2020-1307
https://doi.org/10.5194/acp-2020-1307

  12 Jan 2021

12 Jan 2021

Review status: this preprint is currently under review for the journal ACP.

Opinion: Gigacity – a source of problems or the new way to sustainable development

Markku Kulmala1,2,3, Tom V. Kokkonen1,2, Juha Pekkanen4,5, Sami Paatero2, Tuukka Petäjä1,2,3, Veli-Matti Kerminen2, and Aijun Ding1 Markku Kulmala et al.
  • 1Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, China
  • 2Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Finland
  • 3Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China
  • 4Department of Public Health, University of Helsinki, P.O.Box 20, 00014 University of Helsinki, Finland
  • 5Environmental Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland

Abstract. The eastern part of China as a whole is practically a gigacity, a conglomeration of megacities with ca 650 000 000 inhabitants. The gigacity, with its emissions, processes in pollution cocktail, numerous feedbacks and interactions, has a crucial and big impact on regional air quality within itself as well as on global climate. A large-scale research and innovation program is needed to meet the interlinked grand challenges in this gigacity and to serve as a platform for finding pathways for sustainable development of the whole Globe.

Markku Kulmala et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2020-1307', Roy M. Harrison, 10 Feb 2021
    • AC1: 'Reply on RC1', Tom Kokkonen, 05 Mar 2021
  • RC2: 'Comment on acp-2020-1307', Anonymous Referee #2, 16 Feb 2021
    • AC2: 'Reply on RC2', Tom Kokkonen, 05 Mar 2021

Markku Kulmala et al.

Markku Kulmala et al.

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Short summary
The eastern part of China as a whole is practically a gigacity with ca 650 000 000 inhabitants. The gigacity, with its emissions, processes in pollution cocktail, numerous feedbacks and interactions, has a crucial and big impact on regional air quality within itself as well as on global climate. A large-scale research and innovation program is needed to meet the interlinked grand challenges in this gigacity and to serve as a platform for finding pathways for sustainable development of the Globe.
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