In contrast to cattle, mealworms do not use a lot of space or food and therefore present one of the most sustainable sources of protein. The Global Warming Potential of mealworms per kg of edible protein is low compared to milk,  chicken, pork or beef-these all have 1-12x higher potential than our friendly mealworms! (Source: Oonincx DGAB, de Boer IJM (2012) Environmental Impact of the Production of Mealworms as a Protein Source for Humans – A Life Cycle Assessment). The total CO2eq of mealworm production per kg of edible protein is 2.65kg, which is drastically lower than what cattle, pork and chicken emit.