Welcome to the Event Directors Sustainability Network (EDiSN), a network for event directors to share ideas and resources to organize events that are environmentally sustainable. We invite all event directors to join, whether your event has 100 people or 10,000. We are a network for all kinds of events—road running, trail running, cycling, walking, triathalons, and more. This is a DIY network, intended for events that lack corporate sponsors or big budgets, but want to hold sustainable events. Like Thomas Edison, we are committed to innovative ideas and practices, and the willingness to change the world.