In 2015, a Spanish environmental NGO called RCTCMM launched a market of products coming from land stewardship (LS) agreements certified with participatory guarantee systems (PGSs), claiming it to be a sustainable alternative to the products certified as EU organic.
The conventional agricultural production system is not sustainable. Organic agriculture is assumed to be sustainable from the environmental perspective, and its production and labelling has been regulated in the European Union (EU). The EU organic regime has been challenged by proponents of agroecology, a philosophy that merges agriculture and ecology and considers environmental and social aspects. Some other initiatives at the local and regional level propose different ways of producing food sustainably.