Making GreenMarble was a learning process in a lot of different ways, from learning more about carbon emissions, to programming and releasing an app. One of the things we learned a great deal about is life-cycle assessments. A life-cycle assessment is the careful analysis of all stages of a products life-cycle with regards to environmental impacts, and without them, GreenMarble would have been impossible to create. GreenMarble would like to thank all the companies and individuals who have performed life-cycle assessments. Life-cycle assessments don’t benefit just the environment though. This kind of careful analysis can lead to more efficient and economical production and distribution.