April 22 marks the arrival of Earth Day, which provides all of us with a good reason to think of ways to live more sustainably. For more than 20 years, the MIT Working Green Committee has helped community members do just that by encouraging the reuse and recycling of possessions. Made up entirely of volunteers, the committee has played an important role in promoting more sustainable operations at MIT and raising awareness of the importance of conservation. “We try to provide a place for people to learn how to live…