A Brief History of Energy Use: From Fire to Fossil Fuels

This article is an excerpt from the Shortform book guide to "How the World Really Works" by Vaclav Smil. Shortform has the world's best summaries and analyses of books you should be reading.

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When did we become dependent on fossil fuels? What did we use before that?

Vaclav Smil explains that, for millennia, the only energy sources humans relied on (besides their own labor) were fire and animals. It wasn’t until the 1900s that we began using large amounts of coal and the mid-20th century when we began relying heavily on other fossil fuels.

Continue reading for a brief history of energy use.

The History of Energy Use

The modern history of energy use is one of ever-increasing reliance on fossil fuels. We’ll explore that after a quick look at what we used before fossil fuels dominated the scene.

Fire and Muscle

Humans’ earliest source of energy was fire. Then, after the development of agriculture, domesticated animals were used for transportation, agricultural work, and lifting or carrying heavy loads. Much later, humans developed sails, waterwheels, and windmills. But even as late as the 1500s in societies that used these more modern forms of mechanical energy, the vast bulk of energy was still supplied by human and animal labor and by burning wood.

(Shortform note: As the world’s population grew and became more urban, our reliance on fire to provide heat and light began to cause problems. For example, in England in the 16th and 17th centuries, wood became scarce. By this time, it was being used not only as fuel but also as a building material for rapidly-ballooning cities like London. As a result, England’s forests began to disappear.)

Fossil Fuels

In the 1600s, England began using coal for fuel, rather than wood. The world was slow to adopt coal as an energy source, but by 1900, coal and crude oil were providing about half of the world’s energy. In the late 1800s, new forms of mechanical energy were also developed, from water and steam turbines to gasoline-fueled combustion engines.

Commercial crude oil was first extracted in the 1850s in Russia, Canada, and the US, and was used mostly to produce kerosene. After the development of the combustion engine, it was refined to produce gasoline and diesel fuel. But crude oil didn’t become the world’s primary source of energy until giant oil fields were discovered in the Middle East and the USSR in the 1940s and 1950s.

(Shortform note: Fossil fuels are fuels formed from the fossilized remains of plants and animals that lived millions of years ago. Layers of sand and rock covered over decomposing carbon-based organisms, subjecting them to immense pressure and heat, which converted them into crude oil (liquid at room temperature), coal (solid), and natural gas (gaseous). Fossil fuels can be extracted from the earth and further refined to create gasoline, diesel fuel, and heating oil; they can also be used as the basis for making plastics and many other products.)

A Brief History of Energy Use: From Fire to Fossil Fuels