After more than a decade on the drawing board, a farmer and an engineer say they have created a generator that runs off green waste, recycles its emissions, and costs virtually nothing.
Money might not grow on trees, but they are becoming more profitable. And it's not just about forestry and timber — the tree economy has many diverse branches.
Canberra's main drag was a leafy-green festival of foliage before being turned into a barren stretch of cement and construction detritus to make way for the light rail. So what happened to those trees?
From crudely poisoned roots to whole trees being cut down in the dead of night, neighbourhood tree disputes are remarkably common — and some people even sell up and move house as the fight gets personal.