Back from the Brink by Peter Andrews
Out in the rural areas of NSW (and probably in other states of Australia as well) this book has been causing a minor furore. Country town bookstores were selling out of all their copies in a day, everyone was talking about it, everyone wanted to read it, everyone was ordering in a copy for their father/wife/husband/themselves because the word on the street was that it contained mighty important information about how to drought-proof your land.