Opinion: We each consume more energy than ever and that’s a big problem

A joules is an amount of energy equal to roughly the heat required to raise the temperature of one cubic centimetre of water by 0.25 Celsius.

Large numbers are hard to comprehend but it works out to 204,175,000,000 joules per person in Canada or a continuous personal consumption of 6.5 kilowatts. Not that that really provides much of an improvement in understanding the amount of energy we consume.We get this energy from a wide variety of sources. Burning fossil fuels in the engine of our vehicle produces some of those joules. Burning natural gas in our furnace produces a significant chunk.

For example, there is roughly a gigajoule or 1,000,000,000 joules of embodied energy in a smart phone. This is not the amount of energy it will use over its lifespan. It is the amount of energy tied up in extracting and purifying the components of the phone and in assembling the whole thing.

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