This aerial photo taken on October 16, 2023 shows the Nanjing Vertical Forest in Jiangbei New Area. The building facades feature plants and shrubs, which are projected to produce about 60 kilograms of oxygen daily and absorb 25 tonnes of carbon dioxide annually. (CFP Photo)

Nanjing ranked second among China’s 42 key cities in terms of development potential in the "2022 Competitiveness Index of Green Building Development in Chinese Cities." During the 14th Five-Year Plan (2021-2025), Nanjing has expanded its green building area by approximately 53 million square meters.

This aerial photo taken on October 16, 2023 shows the Nanjing Vertical Forest in Jiangbei New Area. The building facades feature plants and shrubs, which are projected to produce about 60 kilograms of oxygen daily and absorb 25 tonnes of carbon dioxide annually. (CFP Photo)

This aerial photo taken on October 16, 2023 shows the Nanjing Vertical Forest in Jiangbei New Area. The building facades feature plants and shrubs, which are projected to produce about 60 kilograms of oxygen daily and absorb 25 tonnes of carbon dioxide annually. (CFP Photo)