Hi an' awl. After Sen. Bob Brown made a small comment about the Australian coal/ enviro. problem; "Just stop mining coal in Australia and that will help the problem". I'm sure a few fat cats in the coal industry would have spontaneously vomited on their shoes. I did some research, also after reading about terra preta. There is a company in Australia, please google "ultimate fertilisers" They sell a product called carbon gold. 25% humate, made from Brown coal, pelletised and spreadable with a standard fertiliser spreader I have just placed an order for 4 tonne to apply to a 2 hectare/ 5 acre vineyard. They also do 15 kilogram bags. I also now of a chap that bought some brown coal directly from a mine in Morewell, Victoria to add to his vineyard, his O.C went from .2% to 1% over 2 years. I aim to have my O.C levels at about 5% in two years. Maybe the change of Government here and in emerica may see this as a useful addition to their Kyoto protocol dilemma.