Reusing School Bags Could Save Families Money and Planet

Before tossing that perfectly good backpack for a shiny new one, consider this: manufacturing a single school bag releases the same carbon emissions as driving 80 kilometers in a petrol car.

Amaraja Kulkarni, Archana Thevar, and Sakshi Kalke, sustainability researchers at Vivek PARC Foundation in India, crunched the numbers behind back-to-school shopping. What they found challenges the annual ritual millions of families perform without question.

Every standard school backpack generates about 17.5 kg of carbon dioxide during production. Multiply that across India's 248 million school children, and even just 10 million unnecessary bag purchases create 175 million kg of emissions annually.

The financial impact hits home too. India's back-to-school market reached $15.7 billion in 2024 and is projected to grow to $23.3 billion by 2030. Much of this spending stems not from need but from habit and marketing campaigns that position "new academic year, new everything" as essential.

The researchers examined water bottles next. A single-use plastic bottle generates 82.8 grams of CO₂ in manufacturing, while a reusable polypropylene bottle carries a 21.5 kg carbon footprint. The catch? That reusable bottle must be used for years to justify its environmental cost, making yearly replacements counterproductive.

School uniforms present similar waste. Producing one kilogram of polyester fabric requires 62 liters of water, 153 kg of petroleum, and releases 21 kg of CO₂. Yet standardized colors and durable fabrics could enable uniform exchange programs between siblings and families, extending product life without affecting education quality.

The Ripple Effect

The researchers propose a shift from routine replacement to need-based purchasing. In many households, last year's bag remains fully functional, the water bottle works perfectly, and the stationery kit has years of life ahead.

If Indian families extended school supply life by just one additional year, the cumulative savings in household spending, material consumption, and carbon emissions would be substantial. This approach doesn't compromise quality or learning. It represents a practical, resource-smart decision that benefits both family budgets and planetary health.

The cultural pull toward newness remains strong, backed by aggressive marketing. But choosing to reuse transforms what seems like a small personal decision into collective environmental action.

Sometimes the most sustainable choice is simply using what you already have.