Sound - Make an environmental pledge Everybody needs to do their bit to help the environment. Whether you live in halls of residence, a shared house/flat or at home with your parents, you can make small changes to your day-to-day activities which can make a big difference to the planet and your pocket. As part of Sound Environmental Impact Awards we are encouraging students to fill out the following pledges. Who knows, it could help you on your way to becoming the greenest student on campus! The Sound Environmental Impact Awards are run by NUS Services and are partnered this year by The Ecologist for the Communications Challenge Award.