The biosphere reserve (BR), as conceived by UNESCO, is a permanent intervention towards sustainable development. With 727 BRs in 131 countries (Ã?sterreichisches MAB-Nationalkomitee 2021), this means interventions highly diverse environmental, economic, socio-cultural and institutional contexts. the MAB Strategy 2015â??2025, Lima Declaration 2016 Action Plan 2016â??2025, UNESCO should develop f...