Whilst that is essentially true, there are still many areas that can grow dedicated crops for ethanol. For example, my FIL used to grow sugar cane. Once the local mill closed (bought out for its real estate value), the cane industry became unsustainable. Due to the land's proximity to the sea (it's right along side an inlet and major river, the high salinity makes crop selection very limited. This land can't be used to grow much else, but by diversifying its return (CCS for sugar and green waste for ethanol), the industry may well return to sustainability.
There are some more factors involved now, such as dormant machinery now needs replacing. If the Feds had have acted earlier, perhaps viability would have been more convincing, but our previous PM and his party dragged their feet on oil dependency (I believe because Gdubya threw him a bone: "He's a man of steel"

)
Now it's all finnigan beginagain.
