There have been some terrific graphs published recently that tell us much more about both the global energy situation and efforts to reduce AGW than any number of lengthy articles.
All these graphs but one are historical, showing how energy use has changed over time since the start of the Industrial Revolution.
First, some history of our reliance on different types of energy over the last two hundred years. Note that coal usage peaked around one hundred years ago and oil in the 1970’s. But note also how important they remain.
The reason for those changes can be seen in the next graph, which effectively demonstrates the energy content of the different types. It’s interesting to see that Biomass is churning out slightly more energy than ever, but as energy demands have risen it and other renewable energy sources have simply been left behind. Those fuels with higher energy density…
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Utopia, you are standing in it! 
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