Seonghoon Woo PhD '15, Jongwon Choi PhD '17, Young Suk Jo SM '13, PhD '16, and Hyunho Kim SM '14, PhD '18 have co-founded Amogy – a startup company that is using ammonia produced by renewable energy as a carbon-free way to fuel a tugboat, report Jennifer McDermott and Michael Hill for The Associated Press. “Without solving the problem, it’s not going to be possible to make the planet sustainable,” says Woo. “I don’t think this is the problem of the next generation. This is a really big problem for our generation.”