From the article: Many believe that air-freight is more common than it actually is. Very little food is air-freighted; it accounts for only 0.16% of food miles

From the article: Many believe that air-freight is more common than it actually is. Very little food is air-freighted; it accounts for only 0.16% of food miles.9 But for the few products which are transported by air, the emissions can be very high: it emits 50 times more CO2eq than boat per tonne kilometer.10