However, publicly guided international mechanisms of technological diffusion have limited precedents, since, historically, the bulk of technological knowledge has been embodied and transferred as private property through the operations of private companies. The successful experience of CGIAR is an example of how rapid worldwide diffusion of new agricultural technologies can be effected through a publicly supported global and regional network of research institutions. In the climate change area, building international public policymaking capability can draw upon the experiences already existing in international scientific networks and the example of multi-stakeholder cooperation provided by the work of the Intergovernmental Panel on Climate Change.