Our SMS program makes it easier to help by notifying you when there's something you might want to help with. It also means you can participate in questions relating to your area of knowledge. For example, if you know a lot about recycling, you may be able to answer questions that can help with the project. From time to time, we might send you one of these questions, and if you want to help you can answer it with a simple reply SMS. You don't have to reply of course, it's up to you each time.