![](https://lh3.googleusercontent.com/blogger_img_proxy/AEn0k_sutZwDaFjMAYZcPQV9ithVZr8McYPUaM0y0N9nstYub9cUucdx4RpFMkW5unHho9pxlG4mpxtsSsFn0-u98LMQCBWA8jbzbjkNshZV2VqSjS16-7r3letMGCJEC7V5vQgScw6FhzigGns=s0-d)
This is a tool that I really like and that was developed as part of the collaboration between WWF-Sweden and Ericsson. Download flash versions for PC and MAC that can be used to illustrate the impact of different ways of providing services. Download MAC
here [12 meg] and PC
here [4 meg]