The two major challenges facing food production are its dependency on weather conditions and the need for large tracts of arable land. But a new study is offering a glimpse into a future where we might not need either. Researchers have developed a method called electro-agriculture, which uses renewable energy and carbon dioxide to grow crops indoors. This innovative approach could transform farming as we know it—and perhaps even allow astronauts to grow food in space. If we grew all the food in the US using this approach, farmland requirements could drop by 94 percent, the researchers claim. “…