Every meal has a measurable footprint because ingredients, production, transport, preparation and waste all contribute to environmental impact. Measuring that footprint helps food initiatives make better choices without losing sight of affordability, health and social value.
For Mensa Mensa and related food-environment work, the point is not to reduce a meal to CO₂ alone. A useful assessment combines climate impact with nutrition, access, cost, waste and neighbourhood value. That makes meal design more transparent and supports practical improvement over time.