Through the ages, lethal viruses continually attacked homo sapiens. While at personal levels the attacks can be devastating, they’ve not slowed human population growth. For instance, the Spanish Epidemic of 1918 killed about 2% of the global human population, a horribly huge number. Yet, on looking solely at population growth rate, this pandemic had no visible effect.
Currently our species is being attacked by another virus, COVID-19. Through great determination and effort we seem to be slowly countering its deadly effect. In consequence, we see many leaders setting post pandemic return-to-work targets. Often, they borrow now to pay later to keep our population busily consuming resources as demanded by the markets. In consequence, as COVID-19 surrenders, we expect to see our species return to business as usual meaning more people and higher consumption, especially energy consumption.
In 2019, our primary energy consumption exceeded 583 exajoules annually; sourced mostly from non-renewable sources. On average, each person’s annual energy consumption exceeded 75 gigajoules. This is a huge amount, being over 1.5 times greater than the average in 1965 and obviously a huge increase over preindustrial times. But the supply of fossil fuels will end. So, when we build back better after COVID-19, wouldn’t we be wise to enable lifestyles for the future 10 billion inhabitants that doesn’t rely upon fossil fuels?