Patent ID: 7707085

Claim:
An environmental impact information system for collecting information on environmental impact associated with each of a plurality of processes involved in activities of an organization as well as analyzing cost-effectiveness by a computer, the environmental impact information system comprising: a registration unit which receives at least an estimated investment amount, estimated years of depreciation, an estimated environmental impact reduction amount, and an estimated environmental cost reduction for each of a plurality of investment plans, which are to be implemented for reducing the environmental impact at each of the plurality of processes, and registers them in a storage unit of the computer; a sorting unit which obtains cost-effectiveness of each investment plan registered by the registration unit based on a computation result of, by the computer, equation 1: Ei=Di×Bi/Ai, where Ei, Di, Bi, and Ai denote the cost effectiveness, the estimated environmental cost reduction amount per year, the estimated years of depreciation, and the estimated investment amount, respectively, and sorts the investment plans in an order of ascending level of the obtained cost-effectiveness in the storage unit; and a determination unit which continuously adds up, based on the computation result by the computer, the environmental impact reduction amount and the investment amount in the order of the investment plans sorted by the sorting unit, and determines, when the added-up environmental impact reduction amount reaches a predetermined target reduction amount, the investment amount that has been added up thus far as an appropriate investment amount.