CO_2-emissions connected with the production fo ferrosilicon, silicon-metal, silicomanganese and ferromanganese are discussed. The specific CO_2-emission is given for differnet ways for generating electric power; hydro-uclear, natural gas, coal and a European mix of energy sources. CO_2-emissions connected to coke production are included. Otherwise the paper has not taken into account the contribution to CO_2-emissions from mining raw material, or transport of raw materials and products. the use of biocarbon as a source for carbon is discussed. Present and possible contributions to the global CO_2-balance by using by-products and recovering energy from off-gases are discussed.
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