The city government plans to plant an additional 15 million trees, having already planted 15 million trees between 2014 and last year.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/seoul-plant-30-million-trees-2022-fight-fine-dust
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/korea-herald
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/forests
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/afforestation
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/south-korea
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/trees
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cars
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution