Read the passage below:
Urban agriculture has rapidly evolved from a niche hobby into a critical component of metropolitan climate resilience across coastal West Africa. In cities like Accra and Lagos, municipal authorities are transforming vacant plots and rooftops into micro-farms to absorb heavy rainfall, reduce ambient heat island effects, and shorten food supply chains. While critics point to potential soil contamination risks and high initial infrastructure costs, urban planners emphasize that the thermal and hydrological benefits alone outweigh these localized concerns. Consequently, integrating urban farming into master city plans is increasingly viewed not merely as a food security initiative, but as an essential strategy for sustainable urban infrastructure.
Statement: The primary argument of the passage is that municipal authorities in Accra and Lagos are converting vacant city plots into micro-farms to absorb heavy rainfall and reduce heat.
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