Australia also is discussing biogas, and waste biogas in particular. This is in fact the context where the greatest potential lies, with over 40 million tons of national waste every year available for anaerobic digestion. There are also several policy incentives to halve the quantity of organic matter in landfills by 2030. In this scenario, biomethane is also beginning to be discussed.
Here is a more detailed overview with Hamish Jolly from the Delorean Corporation.