FIGUERES OLSEN, Jose Maria creator text 1996 monographic Identifies twelve challenges which sum up the core elements of sustainability, viz: land-use planning, climatic change, biodiversity, conservation areas, education, renewable energy sources, agricultural development, economic policies, environmental management, modernisation and diversification of production, and, the development of democracies. 3/7/00 M2LMGR 20260716043348.0