当今世界出现的知识经济和循环经济两大新趋势，为上海实施可持续发展战略指明了新的发展方向和重点。以信息技术和生物技术等高技术为主要载体的知识经济，将逐步实现智力资源对物质资源的替代，根本改变发展中资源利用与环境保护的被动局面，为上海走可持续发展之路展现了? The two major new trends in knowledge economy and circular economy in the world nowadays have pointed out new development directions and priorities for the implementation of the strategy of sustainable development in Shanghai. The knowledge-based economy with high technologies such as information technology and biotechnology as the main carrier will gradually replace the passive replacement of material resources by intellectual resources and fundamentally change the passive situation of the utilization of resources and environmental protection in development. This will show Shanghai the path of sustainable development ?