Is Emission Reduction in Cities Possible with Urban Gardening?

Aytaç Tolga Timur from Yeryüzü Association states that urban gardening can be effective method in reducing emission rates within cities, especially in smaller cities such as Gaziantep and Manisa, given the size of the existing garden rate and climate conditions.
Link: https://www.iklimhaber.org/kent-bahceciligi-ile-kentlerde-emisyon-azaltimi-mumkun-mu/