Co-Designing Urban Carbon Sink Parks: Case Carbon Lane in Helsinki

Priit Tammeorg, Päivi Soronen, Anu Riikonen, Esko Salo, Suvi Tikka, Minja Koivunen, Anna-Reetta Salonen, Topi Kopakkala, Mikko Jalas

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)


In order to achieve the goals of carbon (C) neutrality within next 20 year, municipalities worldwide need to increasingly apply negative emission technologies. We focus on the main principles of urban demonstration areas using biochars for C sequestration and explore the lessons learned from a co-creation process of one such park, Hyväntoivonpuisto in Helsinki, Finland. Demonstration sites of urban C sinks in public parks must be safe, visible and scientifically sound for reliable and cost-effective verification of carbon sequestration. We find that different interests can be arbitrated and that synergy that emerges from co-creation of urban C sink parks between stakeholders (scientists, city officials, companies, and citizens) can result in demo areas with maximized potential for impact, dissemination and consideration of principles of scientific experimentation.
Original languageEnglish
Article number672468
JournalFrontiers in Environmental Science
Publication statusPublished - 19 Aug 2021
MoE publication typeA1 Journal article-refereed


  • biochar
  • carbon sequestration
  • demonstration sites
  • soils
  • trees
  • urban parks


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