How Access to Energy Brought Humanity Forward

By Anthony Watts – Re-Blogged From http://www.WattsUpWithThat.com

I got an email today that contained a blog post about another subject unrelated to climate or energy, but it had this graph in it that caught my eye:

global-gdp-since-steam-engine

The invention of the steam engine (which used coal and wood at first, with oil and natural gas coming later) seems to be the catalyst for change in the human race. Now that’s a hockey stick we can all get behind!

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