The approach – macro life cycle assessment (M-LCA) – is based on life cycle assessment methodology and includes additional elements to model economic externalities and the temporal evolution of background parameters. The model can encompass and report the prospect of between 15-30 years.
Other related publications: http://doi.org/10.1016/j.rser.2011.04.004, http://dx.doi.org/10.1016/j.rser.2014.04.042