@article {Vanham2019a,
	title = {{Environmental footprint family to address local to planetary sustainability and deliver on the SDGs}},
	journal = {Science of The Total Environment},
	volume = {693},
	number = {June},
	year = {2019},
	month = {jul},
	pages = {133642},
	publisher = {Elsevier B.V},
	abstract = {The number of publications on environmental footprint indicators has been growing rapidly, but with limited efforts to integrate different footprints into a coherent framework. Such integration is important for comprehensive understanding of environmental issues, policy formulation and assessment of trade-offs between different environmental concerns. Here, we systematize published footprint studies and define a family of footprints that can be used for the assessment of environmental sustainability. We identify overlaps between different footprints and analyse how they relate to the nine planetary boundaries and visualize the crucial information they provide for local and planetary sustainability. In addition, we assess how the footprint family delivers on measuring progress towards Sustainable Development Goals (SDGs), considering its ability to quantify environmental pressures along the supply chain and relating them to the water-energy-food-ecosystem (WEFE) nexus and ecosystem services. We argue that the footprint family is a flexible framework where particular members can be included or excluded according to the context or area of concern. Our paper is based upon a recent workshop bringing together global leading experts on existing environmental footprint indicators.},
	keywords = {Environmental footprint, Environmental footprint assessment, Family, Footprint, Footprint family, Planetary boundaries},
	issn = {00489697},
	doi = {10.1016/j.scitotenv.2019.133642},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0048969719335673 https://doi.org/10.1016/j.scitotenv.2019.133642},
	author = {Vanham, Davy and Leip, Adrian and Galli, Alessandro and Kastner, Thomas and Bruckner, Martin and Uwizeye, Aimable and van Dijk, Kimo and Ercin, Ertug and Dalin, Carole and Brand{\~a}o, Miguel and Bastianoni, Simone and Fang, Kai and Leach, Allison M. and Chapagain, Ashok and Van der Velde, Marijn and Sala, Serenella and Pant, Rana and Mancini, Lucia and Monforti-Ferrario, Fabio and Carmona-Garcia, Gema and Marques, Alexandra and Weiss, Franz and Hoekstra, Arjen Y.}
}
@article {Leip2019a,
	title = {{Nitrogen Footprints}},
	journal = {Encyclopedia of Ecology},
	volume = {4},
	number = {2012},
	year = {2019},
	pages = {370{\textendash}382},
	publisher = {Elsevier Inc.},
	edition = {2},
	abstract = {N is one of essential element of life on earth, but it contributes in its reactive form to the global environmental problems that are already larger than our earth is able to cope with, and it expected further aggravate (Galloway and Leach, 2016) driven by the increasing demand of food products fuelled by growth of human population, rising incomes and urbanization. The quantification of N footprints at production level can support decision and policy making in the economy, by raising awareness of different stakeholders such as farmers, industrial actors, businesses, governments and scientists on the global threats of anthropogenic activities. These stakeholders have responsibility to reduce the environmental pressures by continuous improvement of the production system through technology and innovation. N footprint is also a tool to inform consumers on the impact of their lifestyle choices on the N pollution, which is essential to share the responsibility in protecting the planet. Raising awareness to all stakeholders and consumers at all levels will help to reduce the N footprint.},
	keywords = {agriculture, Consumption, Energy, Food, Footprints, nitrogen, Production},
	isbn = {9780124095489},
	doi = {10.1016/B978-0-12-409548-9.10753-5},
	url = {http://dx.doi.org/10.1016/B978-0-12-409548-9.10753-5 https://linkinghub.elsevier.com/retrieve/pii/B9780124095489107535},
	author = {Leip, Adrian and Uwizeye, Aimable}
}
@article {AdrianLeip,
	title = {{The value of manure - manure as co-product in life cycle assessment}},
	journal = {Journal of Environmental Management},
	volume = {241},
	number = {March},
	year = {2019},
	month = {jul},
	pages = {293{\textendash}304},
	publisher = {Elsevier},
	keywords = {Allocation, Fertilizer, Life cycle assessment, Livestock supply chains, Manure, Nutrients},
	issn = {03014797},
	doi = {10.1016/j.jenvman.2019.03.059},
	url = {https://linkinghub.elsevier.com/retrieve/pii/S0301479719303627},
	author = {Leip, Adrian and Ledgart, Stewart and Uwizeye, Aimable and Palhares, Julio C.P. and Aller, Fernanda and Amon, Barbara and Binder, Michael and Cordovil, Claudia M.d.S. and Dong, Hongming and Fusi, Alessandra and Helin, Janne and H{\"o}rtenhuber, Stefan and Hristov, Alexander N. and Koelsch, Richard and Liu, Chunjiang and Masso, Cargele and Nkongolo, Nsalambi V. and Patra, Amlan K. and Redding, Matthew R. and Rufino, Mariana C. and Sakrabani, Ruben and Thoma, Greg and Vert{\`e}s, Fran{\c c}oise and Wang, Ying and Ledgard, Stewart and Uwizeye, Aimable and Palhares, Julio C.P. and Aller, M. Fernanda and Amon, Barbara and Binder, Michael and Cordovil, Claudia M.d.S. and De Camillis, Camillo and Dong, Hongming and Fusi, Alessandra and Helin, Janne and H{\"o}rtenhuber, Stefan and Hristov, Alexander N. and Koelsch, Richard and Liu, Chunjiang and Masso, Cargele and Nkongolo, Nsalambi V. and Patra, Amlan K. and Redding, Matthew R. and Rufino, Mariana C. and Sakrabani, Ruben and Thoma, Greg and Vert{\`e}s, Fran{\c c}oise and Wang, Ying}
}
@article {Uwizeye2020,
	title = {{Nitrogen emissions along global livestock supply chains}},
	journal = {Nature Food},
	year = {2020},
	month = {jul},
	issn = {2662-1355},
	doi = {10.1038/s43016-020-0113-y},
	url = {http://www.nature.com/articles/s43016-020-0113-y https://github.com/uaimable/Global{\_}Nitrogen{\_}assessment},
	author = {Uwizeye, Aimable and de Boer, Imke J. M. and Opio, Carolyn I and Schulte, Rogier P O and Falcucci, Alessandra and Tempio, Giuseppe and Teillard, F{\'e}lix and Casu, Flavia and Rulli, Monica and Galloway, James N and Leip, Adrian and Erisman, Jan Willem and Robinson, Timothy P and Steinfeld, Henning and Gerber, Pierre J}
}
@article {Kanter2019,
	title = {{Nitrogen pollution policy beyond the farm}},
	journal = {Nature Food},
	volume = {1},
	number = {1},
	year = {2020},
	month = {jan},
	pages = {27{\textendash}32},
	abstract = {Nitrogen is a crucial input to food production and yet its oversupply in many parts of the world contributes to a number of environmental problems. Most policies dedicated to reducing agricultural nitrogen pollution focus on changing farmer behaviour. However, farm-level policies are challenging to implement and farmers are just one of several actors in the agri-food chain. The activities of other actors {\textemdash} from fertilizer manufacturers to wastewater treatment companies {\textemdash} can also impact nitrogen losses at the farm level and beyond. Consequently, policymakers have a broader range of policy options than traditionally thought to address nitrogen pollution from field to fork. Inspired by the concept of full-chain nitrogen use efficiency, this Perspective introduces the major actors common in agri-food chains from a nitrogen standpoint, identifies nitrogen policies that could be targeted towards them and proposes several new criteria to guide ex-ante analysis of the feasibility and design of different policy interventions. Sustainably feeding ten billion people by 2050 will require fundamental changes in the global food system {\textemdash} a broad portfolio of policy options and a framework for how to select them is essential.},
	issn = {2662-1355},
	doi = {10.1038/s43016-019-0001-5},
	url = {https://doi.org/10.1038/s43016-019-0001-5 http://www.nature.com/articles/s43016-019-0001-5},
	author = {Kanter, David R and Bartolini, Fabio and Kugelberg, Susanna and Leip, Adrian and Oenema, Oene and Uwizeye, Aimable}
}
