In light of never before seen environmental degradation and social injustice, the urgency to move forward on the path of sustainable development has skyrocketed. As Millennials, we see it in our duty to raise awareness about the dangers of our lifestyles and contribute with a solution to measuring sustainability. Corporations alone or along with other market players have been quoted many times as the ones ‘who will save the world’. Thus, the theoretical framework places an emphasis on corporate sustainability, in addition to sustainable development and TBL. As supporters of the view that corporations will play a defining role, the thesis is an investigation into the sustainability of one of the most pollutant corporations, Royal Dutch Shell. As such, the formulated four-dimensional model (Green Model) stands as an addition to the plethora of frameworks in reporting and describing corporate sustainability. In consequence, the research question is aimed at describing the corporate sustainability of Shell, meaning actions, processes and policies as the focus. As such, the emphasis is on the in-depth description of its sustainable or unsustainable characteristics. The path of sustainability is revealed through an analysis that includes 39 indicators. For this, secondary data was collected from Shell itself and other unrelated sources in an attempt to provide an unbiased perspective. The Green Model also contains a rating scale going from favorable and neutral to unfavorable for a visual representation of findings in all indicators. The conclusion is based on the Green Model findings in the case study, plus the Dunphy phase model of sustainability, as an additional tool to answer the research question. Thus, the conclusion reveals the good and the bad deeds, which confirm Shell’s dual nature of actions in terms of sustainability along with an indication of the corporation’s future road. Regarding the case study, Shell was found to hold an unfavorable position on the path of sustainability based on the Green Model. ...