There is a paper in this issue that rates among the most interesting contributions that have come my way in the Journal: 'CFB technology provides solutions for reducing CO_2 emissions', from-. Foster Wheeler Energia Oy, Finland. There are also a number of news items that are particularly topical and contributed to the theme of this Comment. Somewhat irritating but highly significant is an item from Engineering News that the Canadians have beaten us to the draw in successfully growing biofuel crops on several mining slimes dams. This initiative was promoted by Mining Innovation, Rehabilitation and Applied Research Corporation (MIRARCOR), apparently advanced thinking mining research consultants, specializing in techniques using virtual reality computer protocols from Laurentian University in assessing multidimensional feasibility studies. Several mines were involved and the slimes dam experiments were compared with conventional agricultural methods adjacent to the slimes dams; the results were most promising.
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