I left off last week's post – "Money Doesn't Grow on Trees, Industrial-Scale Renewable Energy Does" – by mentioning the existence of a rather excellent resource. By that I didn't mean an energy resource, but rather a book – a book that nonetheless gives a rather fine breakdown of our various energy resources and their applicability to a world in the midst of peak oil and declining EROEI levels. That book would be When Trucks Stop Running: Energy and the Future of Transportation by systems analyst Alice J. Friedemann.
But before I get to the book, it's worth reiterating from said previous post the notion that just as the coal lobbies, nuclear lobbies, and all the other "dirty" fuel lobbies are wont to exaggerate and obfuscate the specifics of their energy resources, so too are lobbyists for the large-scale application of "renewable" energy sources more than willing to exaggerate, obfuscate, and even fudge the facts when it comes to conveying the benefits and advantages of their energy resources. And as I also pointed out, the latter is just as often the work of PR agencies and other marketeers, the goal effectively being anything but conveying a clear understanding of our current energy situation. Friedemann perfectly explains why this is (italics mine):
In business, ...analysis is essential to prevent bankruptcy. Yet when scientists find oil, coal, and natural gas production likely to peak within decades, rather than centuries, or that ethanol, solar photovoltaic, tar sands, oil shale, and other alternative energy resources have a low or even negative energy return on the energy invested, they are ignored and called pessimists, no matter how solid their findings. For every one of their peer-reviewed papers, there are thousands of positive press releases with breakthroughs that never pan out, and economists promising perpetual growth and energy independence. Optimism is more important than facts. And, it's essential for attracting investors.