Over the Barrel: The Complex Task of Decarbonizing the World

Fossil fuels are the lifeblood of modern society, used for everything from heating homes to powering cars and planes to generating the electricity that keeps the internet running. Crude oil, natural gas, and coal currently meet about 80% of our energy needs globally, but 75% of carbon dioxide emissions come from finding and burning these fossil fuels. There is a consensus about transitioning away from those sources of energy, given how much they contribute to climate change, but there is not a consensus on how much our reliance upon them can be cut or what will replace them. There does not appear to be one clear replacement and there will likely be multiple pathways to decarbonizing the global economy. To understand our energy future, it is helpful to have a perspective on past efforts to develop new energy sources. In this excerpt from the 2024 Harding Loevner Investor Forum, our analysts offer some perspective on the history of energy transition. ∎