graph: complete environmental burdon with focus on food

basic principles for climate-friendly food
References
Tukker, A., Huppes, G., Guinée, J., Heijungs, R., Koning de, A., Oers van, L., Sangwon, S., Geerken, T., Holderbeke van, M., Jansen, B., 2006. Environmental Impact of Products (EIPRO) Analysis of the life cycle environmental impacts related to the final consumption of the EU-25 Main report. European Communities, 2006. Spain.