Word has it that classroom projector light bulbs are burning out too often from being left on overnight. From an environmental perspective, I’d like to add a here a plug for turning off not only projectors, but also student computers and overhead lights. When you’re done teaching in a room on campus, you might be the last person in that room for hours or even days. The electricity that is feeding those lights and equipment comes from a factory somewhere out there, a factory that is churning out emissions contributing to air pollution.
Hence, turning off equipment when you leave actually reduces not only energy used, but air pollution as well.
Additionally, hitting the off switch on student computers if you’re in a lab saves a ton of energy, prevents power surges in case of crazy weather, and makes the air quality in the labs so much less rubbery for the next class. I try to leave the rooms on campus the way I would leave my home if I were going to be away for a few days. After all, we spend enough time in those classrooms to call them a second home, right?
– Kristina Kunkel