Sustainable development is governed by a set of principles developed through several decades of global discourse and research. It is not the objective of this section to discuss all these principles, but rather highlight those that that are relevant to the implementation of the SSDS 2012-2020. Detailed and specific principles of sustainable development are presented in each of the thematic chapters. Judging from the vision and objectives of first two environment management plans (EMPS), it is evident that the Seychelles wishes to pursue an ecologically-driven approach to sustainable development. Recognising the fragility of the Seychelles environment and its relative vulnerability, this approach to sustainability is widely accepted by the Seychelles community and stakeholders and impregnated in ongoing government policy and action. Ecologically sustainable development is especially important for Seychelles in view of its high dependence on tourism and fisheries as main sources of economic prosperity. 6.1 Emerging Issues: Rio+20 (United Nations Conference on Sustainabl Development) The publication of the SDSS 2012-2020 dovetails into the preparatory process for Rio+20. It is therefore expected that issues agreed upon by contributors to this global process on sustainable development will not be adequately represented in the present version of the SDSS 2012-2020. However, a few key issues likely to dominate the Rio+20 negotiations include: the concept of the green economy; the clustering and binding implementation modalities of MEA's; the role of international environmental arbitration such as an international environment court, and other recommendations to reform or create a UN environment organization. The concept of the green economy is of specific significance to the SSDS.