The biggest part of a meal’s carbon footprint often happens before it travels

The distance on a food label is easy to see. The emissions from land use, animal digestion, fertilizer, and production are less visible—and often much larger.

Drawing on a major food-system meta-analysis, this article separates those stages. For high-emission foods such as beef, eliminating transport leaves most of the footprint intact. In other cases, importing seasonal produce can compare favorably with growing it in an energy-intensive local greenhouse.

Air freight is an important exception: flying perishable food can be emissions-intensive even when shipping the same weight by sea is relatively modest. These comparisons do not settle every reason to support local farming. They explain why distance alone is a poor proxy for climate impact, and why changing the product can matter more than shortening its journey.