Where does the Fogo go? The challenge of recovering Sydney's green waste - and how you can help - NZ-born Christine Dawson, grandmother-of-five, found dead in Sydney - Sydney to London flight emissions can be halved depending on route, plane and seating - Mysterious sightings of wild cats in suburban Sydney explored in new show - Sex worker allegedly assaulted in Sydney brothel as women strike for better pay - Koala deaths almost double in housing developments in south-western Sydney, data shows - Sydney's 'little school project' named World Building of the Year - Chris Martin's strange act at Sydney Airport before flying to Auckland for Coldplay's NZ shows - Sydney identifies 'disgusting' balls that shut beaches - Runway fire breaks out at Sydney Airport after emergency landing