In a green economy there may be economic growth if environmental limits considered to be of vital interest are adhered to. Developmental risks associated with its possible one dimensionality, one-size-fits-all reductionism, and new trade restrictions and conditionalities (Khor, 2011) are recognized and should be addressed through international negotiation during and beyond Rio+20. Market mechanisms typically are inadequate as exclusive facilitators in the provision of such goods, or fail through their role in the generation of externalities in terms of social and ecological costs. Unsustainable development may result from an inherent orientation within market forces and market actors towards short-term aspects (like revenues and profits) as opposed to future needs, reinforced by inherent growth impulses. In the absence of standards and regulations that safeguard the continued delivery of the functions of nature, economic growth ignores the constraints inherent in the notion of environmental space. In the field of trade regimes, it needs to be made clear where and how objectives and mechanisms agreed in the setting of Multilateral Environmental Agreements trump traditional notions laid down in current WTO regulations and practices.