下世纪能源论坛:开栏寄语　对人类而言,下一个世纪将充满了希望、机遇和挑战,同时又面临资源、环境和人口问题三大困扰。其中,作为人类赖以生存的物质基础的能源,又是维系社会进步和可持续发展的头等难题。自从原始人学会用火以来,人类社会大致经历了三个能源时期,即薪柴时期、 Energy Forum for the Next Century: Opening a Message To mankind, the next century will be filled with hope, opportunities and challenges while facing three major problems of resources, environment and population. Among them, the energy that serves as the material basis for the survival of mankind is also the top priority for maintaining social progress and sustainable development. Since the primitive people learned to use fire, human society has gone through roughly three periods of energy: the firewood period,