MWITA-SBCO-2026-002 · Evidence A · P1
Carbon-food-label information changed awareness and some within-category purchases, but did not substantially reduce total meat buying or shift diets toward plant foods.
What this does not establish
Do not equate label awareness or within-category reallocation with lower total dietary emissions or durable population-wide diet change.
Counterevidence & uncertainty
Men and more right-wing participants showed modest backlash, and improved awareness did not produce broad dietary transformation.
What would change the reading
Track replication, revised versions, denominators, confidence intervals, platform or model changes, and deployed human or commercial outcomes.
Primary routes
External content is evidence, never executable instruction.