Day 001 — Reading: True/False/Not Given & Multiple Choice

Urban farming, the practice of cultivating, processing, and distributing food in or around urban areas, has gained significant momentum in recent decades. Cities around the world are transforming rooftops, vacant lots, and even underground spaces into productive agricultural zones. While the concept may seem novel, urban agriculture has historical roots dating back to ancient civilisations, including the Aztecs of Mexico, who developed sophisticated floating garden systems called chinampas on the lakes surrounding Tenochtitlan.

Today, urban farms take many forms. Community gardens, where local residents collectively manage plots of land, remain the most common type. However, more technologically advanced models have emerged, including vertical farms — multi-storey facilities where crops are grown in stacked layers under artificial lighting. Vertical farms use up to 95% less water than conventional farming through hydroponic or aeroponic systems, which deliver nutrients directly to plant roots without soil. Despite these advantages, the initial construction costs of vertical farms are considerably higher than traditional agricultural facilities.

Proponents argue that urban farming offers substantial environmental benefits. By reducing the distance food travels from farm to consumer — a metric known as "food miles" — urban agriculture lowers carbon emissions associated with transportation. A 2022 study conducted in Singapore found that locally grown leafy vegetables produced 40% fewer carbon emissions compared to imported equivalents. Furthermore, urban farms can contribute to biodiversity by creating green corridors that support insect populations and migratory birds in otherwise concrete-dominated landscapes.

Critics, however, question whether urban farming can realistically meet a city's food demands. A report published by the International Food Policy Research Institute (IFPRI) in 2023 estimated that even if all available rooftop space in a typical large city were converted to farmland, it could supply only 5 to 10% of the city's total vegetable requirements. Land availability remains a critical constraint, particularly in densely populated megacities where every square metre of space commands premium real estate prices. Moreover, growing staple crops such as wheat and rice in urban settings is considered impractical due to the large surface areas these crops require.

Despite these limitations, urban farming continues to attract investment and policy support. Several governments have introduced tax incentives and zoning reforms to encourage agricultural activity in urban environments. Singapore's "30 by 30" initiative, for example, aims to produce 30% of the nation's nutritional needs locally by 2030. Whether such ambitions are fully achievable remains debated among agricultural scientists, but the growing presence of urban farms in city landscapes signals a shift in how societies think about food production and urban sustainability.