 This paper proposes a novel approach to increasing crop yield by introducing carboxysoams into chloroplasts. Carboxysoams are small protein structures found in cyanobacteria, and some bacteria, which help to increase the efficiency of carbon fixation. By introducing these structures into chloroplasts, the authors were able to demonstrate that they could be used to increase the amount of carbon fixed by the plant. This has the potential to significantly increase crop yield and reduce the need for fertilizers. This article was authored by Tayu Chen, Marta Hoika, Philip Davy, and others.