In 1972, the United Nations held its first-ever environmental summit in Stockholm. In the run-up to the event, a group of scientists wrote The Limits to Growth, a report for the Club of Rome that became an unlikely bestseller.
The authors argued that Earth's finite natural resources could not support ever-increasing consumption, and warned of likely ecological overshoot and societal collapse if the world did not recognise the environmental costs of human activity. Failure to change course would mean declines in per capita food and energy supplies, increasing pollution, lower standards of living, and the possibility of dramatic population collapses by the middle of the twenty-first century.
But Limits did not provide a single forecast. Rather, the authors explored several alternative paths based on different human strategies, and recent research by Gaya Herrington has shown that three of the four scenarios they outlined align quite closely with empirical data.