Category Archives: EROEI Energy Returned on Energy Invested

EROI downward spiral

Posted on June 7, 2013 by

Stephen Leeb. June 2013. Dangerous times as energy sources get costlier to extract. Forbes. Remember the term “peak oil”? With all the oil now available from oil shale, tar sands, and other new sources, many analysts assume that the old … Continue reading →

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Net Energy Cliff Will Lead to Collapse of Civilization by 2030

Posted on March 12, 2013 by

Source: 22 June 2009. David Murphy. The Net Hubbert Curve: What Does It Mean? theoildrum. This is the scariest chart I’ve ever seen.  And also the most important.  I put it on my refrigerator to remind myself what the future … Continue reading →

Posted in 2) Collapse, An Overview, By People, Energy, EROEI Energy Returned on Energy Invested, Fast Crash, Stages of | 1 Comment

What is global EROI now? A Review of 2012 EROI of Global Energy Resources

Posted on January 16, 2013 by

Jessica Lambert, Nov 2012. Charles Hall, et. al. EROI of Global Energy Resources Preliminary Status and Trends.  State University of New York, College of Environmental Science and Forestry This 41 page pdf is full of graphs, how EROI is calculated, … Continue reading →

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EROEI – Energy Returned on Energy Invested

Posted on July 9, 2011 by

Before we throw what remaining resources we have at “solutions”, it would really be a good idea to spend the energy on something that might work.  For decades scientists have longed to study EROEI, but haven’t been unable to obtain … Continue reading →

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