What is the reason behind the Iranian authorities' promotion of larger families?

Overpopulation leads to increased pollution and the destruction of natural habitats. More people means more waste generation, increased deforestation, and loss of biodiversity. This can have long-term detrimental effects on the environment and ecosystem, leading to issues such as climate change, loss of wildlife, and ecological imbalance. 3. Urbanization and Infrastructure Strain: Overpopulation often leads to rapid urbanization as people migrate from rural areas to cities in search of better opportunities. This puts pressure on urban infrastructure such as housing, transportation, healthcare, and education.