It's one of the biggest events of the year, but if all goes according to plan, there won't be much evidence that it ever took place. Abby Lewis is a junior biology major at Pomona College in Southern California, and works in the university's Office of Sustainability. The Wisconsin native saw that waste goes up on campus significantly every May, due to graduation celebrations, and she came up with an idea: What if the 2018 commencement ceremony was a zero-waste event?