An ancient tree from India is thriving where citrus trees once flourished in Florida, and could help provide the nation with renewable energy. As large parts of the citrus industry have been hit by two fatal diseases, greening and citrus canker, some farmers are turning to the pongamia tree, a climate-resilient tree with the potential to produce plant-based proteins and a sustainable biofuel. Pongamia produces legumes that are so bitter wild hogs won’t even eat them. …Pongamia trees don’t need fertilizer or pesticides. They flourish in drought or rainy conditions. … A machine simply shakes the tiny beans from the branches when they’re ready to harvest. …The legume is now being used to produce Panova table oil, Kona protein bars, protein flour. …The legumes also produce oil that can be used as a biofuel, largely for aviation, which leaves a very low carbon footprint.