Record item category, estimated or measured weight, fault description, fix outcome, spare parts used, and extra life expected. Add visitor postcode only with consent to map reach. These fields empower future analysis, prevent double counting, and make your calculations reusable by partners and policymakers.
Where scales aren’t available, apply reliable defaults from WRAP, WEEE categories, or manufacturer specifications. Note your source beside each category. Update values annually, and flag outliers for review. Consistency across sessions ensures trends reflect behavior change, not shifting guesses about object mass.
Use UK Government conversion factors or peer-reviewed product proxies to estimate embodied emissions. Apply conservative midpoints for product families, and document assumptions. Separately track transport and energy used during events to avoid mixing signals. Clarity helps volunteers explain impact without overselling uncertain numbers.
A cracked-screen smartphone regained function after a donated display and careful reseating of a swollen battery. The visitor delayed replacement for at least eighteen months, sidestepping an estimated seventy kilograms of embodied CO2e. One careful, supported repair turned anxiety into pride, and data into shared celebration.
A sturdy darn and a patch extended favorite jeans by a full year of wear. Avoiding a new pair likely saved dozens of liters of water and around thirty kilograms of CO2e. The owner learned techniques, then returned later to teach three neighbors the same stitch.
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