Tanya Ha is an author, television presenter, environmentalist and internationally recognised sustainable living advocate. She has spent many years working for Planet Ark, a non-political, non-confrontational, unashamedly populist environment group that defines itself by what it's for. She also serves on the board of Sustainability Victoria. A science graduate and former model, she is a passionate advocate for the ways in which ordinary people can help save the planet. Tanya lives in Melbourne with her husband and two children.