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The total life cycle approach makes use of data for various sub-systems and modules to describe the relevance of a defined system under consideration. The different processes and steps take place in several locations. The life cycle approach is an assessment tool beyond this spatial dimension. Often these basic information is not available any more or never has been considered as valuable. By this, different emission sources and different receiving environments are simply neglected by summing up for the total life cycle contributions. The spatial dimension is of outstanding importance for the determination of relevance and meaning of environmental burdens. A more advanced life cycle concept should cover this. Besides the spatial differentiation within on product system, life cycle consideration are also often used to compare different production sites.