The Negative Footprint Illusion: Why Our 'Green' Choices Might Not Be So Green?

The Negative Footprint Illusion (NFI) is a cognitive bias that leads individuals to falsely assume that adding an environmentally friendly product or behavior reduces the overall environmental impact. This illusion distorts sustainability assessments, as people rely on averaging bias, compensatory green beliefs (CGB), framing effects, and quantity insensitivity instead of objectively evaluating total environmental impact. This review examines NFI as a cognitive barrier to sustainable nutrition, exploring its underlying mechanisms and their role in shaping environmental decision-making. Empirical evidence highlights how individuals miscalculate their carbon footprint, particularly in food consumption and energy-related decisions and how perceptual biases reinforce this illusion. Addressing these biases through strategic sustainability communication and evidence-based decision-making frameworks is crucial for fostering truly sustainable consumption behaviors.