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General brochure of the Horizon Europe project P2GreeN (“Closing the gap between fork and farm for circular nutrient flows”), summarising four years of work (2022–2026) by 32 organisations from 13 countries. It presents the three pilot regions – Gotland (Sweden), the North German Plain (Germany) and La Axarquía (Spain) – and their products: Granurin, Aurin® and KIT compost, and reclaimed water with the Smart Fertigation Tool. It covers the four circular business models; evidence on product safety and social acceptance; the EU and national legal framework, including the proposal for a dedicated Component Material Category for human excreta under the Fertilising Products Regulation (EU) 2019/1009; and replication in the four follower regions (Hungary, France, Italy, Greece). It also introduces the project’s tools (Innovation Platform, Replication Platform, educational video game), its policy briefs, and key messages and calls to action for each target group, with contacts for further information. P2GreeN is funded by the European Union’s Horizon Europe programme under grant agreement No 101081883. Photographs credited to third parties (e.g. Goldeimer) remain the property of their owners and are not covered by the CC BY 4.0 licence.
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P2GreeN Consortium (2026) studied this question.
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