期刊名称：IAEE Energy Forum (formerly: IAEE Newsletter)
印刷版ISSN：1093-4243
电子版ISSN：1944-3188
出版年度：2006
卷号：3
页码：5-5
出版社：International Association for Energy Economics
摘要：In surveying the global energy security scene I want to begin with two key concerns –the imperative need for variety and flexibility in energy sources and the huge dangers of over-dependence on single energy sources.
Indeed one could say that they are two sides of the same coin. Let me start with two examples from the 20th Century and three from this new century which are now confronting us in a highly demanding way.
