Eco House Challenge

Jerry Coleby-Williams has tips for living with possums, Millie Ross celebrates our love of pears, Josh Byrne grows colourful natives in pots, and guest presenter Luke Mitchell joins us with a lesson on restoring old tools.

This episode sees Michael revisit his fourth, and in some ways most personal, travel series. Inspired by the apparent emptiness of the desert as seen from a flight, and by boyhood dreams of exploration, Michael sets off to find out what this 'blank space' contains. He is delighted and inspired by the societies he encounters there - nomads, refugees, artists. He also confronts some harsh realities - the effects of war, the migrant crisis, and the rise of militant Islam.

While forests only cover 16 percent of Australia's land area, they harbour a higher concentration of animal species than anywhere else on the continent.