As our Erasmus+ project continues to explore sustainable and tech-driven approaches to education, the global rise of hydroponics shows just how timely—and necessary—this work really is. Across continents, hydroponics is no longer an alternative method of farming; it is becoming a mainstream solution to challenges that traditional agriculture can no longer solve on its own.

From urban rooftops in Singapore to repurposed warehouses in Chicago, hydroponic systems are being used to grow food more efficiently, with less land and water. These soil-free systems use up to 90% less water than conventional farming, rely on controlled environments, and produce higher yields in shorter periods. In many cases, crops grown hydroponically mature 20 to 30% faster, and some vertical farms report up to 30 times greater productivity per square metre compared to open-field agriculture.

But the impact goes beyond production numbers. Hydroponic farming eliminates the need for herbicides and significantly reduces pesticide use. With fewer pests and diseases, the result is cleaner, often more nutritious food—grown closer to where people live. In schools and communities, this means more than just fresh lettuce; it means resilience, education, and innovation coming together to create smarter food systems.

Environmental sustainability is also a major driver. While hydroponics does require energy—especially for lighting and climate control—new systems are increasingly powered by renewable sources, making them more efficient and climate-conscious than many traditional agricultural models. In fact, recent life-cycle studies have shown that hydroponic systems, when optimized, outperform soil-based methods across multiple environmental indicators.