In the event of a global catastrophe (supervolcano eruption, nuclear winter), the world’s food production systems will encounter challenging environmental changes. Duckweed, a high protein aquatic plant, can grow in a variety of conditions including various light intensities, temperatures, and nutrient concentrations. This experiment will expand existing duckweed growth models under low temperature (<15 oC) and low light (<350 umol/m2/sec) conditions. Duckweed grown under these conditions will be evaluated as a resilient food source.