A lot of the book is about how the exploitation of energy sources have made our lives comfortable – a concept that we now take for granted but the word ‘comfort’ only assumed its current meaning in 1770 (when it was used in a letter by Horace Walpole). Until then most people had no expectation of being comfortable and in medieval houses people literally huddled together around a single open hearth with no chimney. The exploitation of coal led to heat, steam for engines to power the industrial revolution, gas for lighting and ultimately to electricity and all the labour saving devices that we now depend on.
|A biomass boiler|
An unplanned consequence of the discovery of oil, was that cheap paraffin destroyed the market for whale oil and saved sperm whales from extinction. Predicting the future supply and demand for energy is never straightforward but we have to try harder to be less dependent on finite resources!