The ceremony of planting 12 million saplings in Kordestan province, western Iran, was held on December 2, 2023, in Sanandaj, the provincial capital, in line with Iran's One Billion Tree Planting Project. (IRNA photos/Mosleh Pirkhezranian)
Tree-planting project ceremony in line with Iran's One Billion Tree Planting Project was started in Iran's Kerman province on December 2, 2023. (IRNA photos/Aboozar Ahmadizadeh)