Happiness and Success

Why High Energy Use Doesn’t Lead To Happiness In Rich Countries

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High energy use provides little benefit for health and well-being in richer nations, according to a new study.

The analysis of data from 140 countries suggests many rich countries could use less energy per capita without compromising health, happiness, or prosperity.

Countries struggling with energy poverty may be able to maximize well-being with less energy than previously thought.

A good, long life requires energy: to illuminate hospitals, homes, and schools, and make it possible to work, cook meals, and study without inhaling toxic smoke or spending a full day collecting fuel. But at some point, energy stops being the limiting factor for well-being.

The new study suggests that point—the threshold beyond which greater energy use loses its link to national-level improvements in measures of health, economy, and environment—is surprisingly low.

The authors found today’s average global energy consumption of 79 gigajoules per person could, in principle, allow everyone on Earth to approach the “maximum health, happiness, and environmental well-being of the most prosperous countries today,” if distributed equitably.

How much energy should each person use?

Other scholars have sought for decades to pin down the bare minimum of energy supply required per capita to achieve a decent quality of life. Early estimates suggested a range of 10 to 65 gigajoules per person.

“It’s one thing to identify where people don’t have enough energy; it’s another to identify what our target might be,” says lead author Rob Jackson, professor of earth system science at Stanford’s School of Earth, Energy & Environmental Sciences (Stanford Earth). “How much additional energy needs to be provided?”

Answering this question is not just an academic exercise. It is central to mapping out how the world can achieve international climate goals while building out modern energy services for the 1.2 billion people who live without electricity and the 2.7 billion who cook on stoves linked to 3.5 million premature deaths each year from household air pollution.

“We need to address equity in energy use and greenhouse gas emissions. Among the least sustainable ways to do that would be to raise everyone to the levels of consumption we have in the United States,” says Jackson, a senior fellow at the Stanford Woods Institute for the Environment and at the Precourt Institute for Energy.


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“Even using renewables, that would have serious, possibly catastrophic consequences for the environment,” because of the materials, land, and resources required to supply hundreds of gigajoules per year for each of the 8.5 billion people projected to inhabit Earth in 2030.

Reducing global population size would also tamp down total energy and resource needs, Jackson says. But there are other ways to close the global energy gap with fewer emissions. The new research provides a gauge for measuring some of the human impacts of one of them: reducing per capita energy use in what Jackson called “energy profligate countries,” while raising the rest of the world’s energy supply to comparable levels.

Energy vs. well-being

The new conclusions derive from statistical analysis of energy-use data for 140 countries from 1971 to 2018, as well as global data for nine metrics related to human well-being. Many of those metrics align with the United Nations’ Sustainable Development Goals, a set of objectives aimed at ending an array of inequities while taking the risks of climate change into account.

The researchers looked at the primary energy supply, which includes all energy production minus exports, international marine and aviation bunkers, and changes in the amount of fuel held in storage, for each of the 140 countries. They then separated out the total energy that goes into increasing well-being from the energy that is wasted or employed for other purposes, such as trade.

Recognizing that well-being is likely to be limited by multiple factors, including income and GDP, the authors examined whether per capita energy use could decline in some countries while maintaining quality of life.

Across most metrics, including life expectancy, infant mortality, happiness, food supply, access to basic sanitation services, and access to electricity, the authors found performance improved steeply, then peaked with annual energy use averaging 10 to 75 gigajoules per person. That’s less than the 2018 world average of 79 gigajoules per capita, and, at the higher end of the range, about a quarter of the US average of 284 gigajoules per person.

US energy use per capita has fallen slightly since the late 1970s, largely because of improvements in energy efficiency, but it remains high in part because of the nation’s outsize demands for energy for transportation.

“In most countries that consume much more energy than the global average, further increasing energy use per capita might only marginally improve human well-being,” says coauthor Chenghao Wang, a postdoctoral scholar in Jackson’s lab and also a research fellow at the Stanford Center for Longevity.

More energy doesn’t mean better lives

The new study reveals at least 10 countries punching above their weight, with greater well-being than most other countries using similar amounts of energy per capita. The high performers include Albania, Bangladesh, Cuba, Denmark, Finland, Iceland, Malta, Morocco, Norway, and Sri Lanka.

Air quality stands apart from the other metrics the authors examined, in that across 133 countries, it continued to improve with per capita energy use as high as 125 gigajoules. That’s on par with the annual per capita energy use of Denmark in 2018, and slightly higher than that of China. One reason may be that the early stages of energy development have historically been dominated by dirtier fossil fuels.

In the US, energy use rose steeply after World War II—decades before federally imposed limits on pollution from tailpipes and smokestacks spurred improvements in the nation’s air quality.

“Wealthier countries like the US tend to clean up their air only after they have built up wealth and the populace demands action,” Jackson says.

Past research has shown that higher income “doesn’t necessarily lead to better and happier lives,” says study coauthor Anders Ahlström, a climate scientist at Lund University who worked on the research as a postdoctoral scholar in Jackson’s lab at Stanford. “Energy supply is similar to income in that way: Excess energy supply has marginal returns.”

The results appear in Ecosphere. Additional coauthors are from Stockholm University, Princeton University, and Jadavpur University.

Support for the research came from Stanford’s Center for Advanced Study in the Behavioral Sciences and the Stanford Center on Longevity’s New Map of Life initiative.

Source: Stanford University

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