Example future food farming system (IMAGE) University of Cambridge Caption State-of-the-art, enclosed and modular photo-bioreactors (PBR) to produce chlorella and spirulina algae. Credit Image courtesy of Vaxa, Iceland. Usage Restrictions With credit as above License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.