This 2nd edition also provides a more user-friendly model(IWM-2) for waste managers. To make it more widely accessible, thisedition provides the new tool in Windows format, with greatlyimproved input and output features, and the ability to comparedifferent scenarios. A detailed user's guide is provided, to takethe reader through the use of the IWM-2 model, step by step. IWM-2is designed to be an "entry level" LCI model for solid waste -user-friendly and appropriate to users starting to apply life cyclethinking to waste systems - while more expert users will also findmany of the advanced features of the IWM-2 model helpful. IWM-2 isdelivered on CD inside the book.