Meanwhile, nations must adopt radical energy conservation measures, invest in renewable energy research, support sustainable local food systems instead of giant biotech agribusiness, adopt no-growth economic and population policies, and strive for international resource cooperation agreements.

These suggestions describe a fundamental change of direction for industrial societies — from the larger, faster, and more centralized, to the smaller, slower, and more locally-based; from competition to cooperation; and from boundless growth to self-limitation.

If such recommendations were taken seriously, they could lead to a world a century from now with fewer people using less energy per capita, all of it from renewable sources, while enjoying a quality of life perhaps enviable by the typical industrial urbanite of today. Human inventiveness could be put to the task, not of making ways to use more resources, but of expanding artistic satisfaction, finding just and convivial social arrangements, and deepening the spiritual experience of being human.

Living in smaller communities, people would enjoy having more control over their lives. Traveling less, they would have more of a sense of rootedness, and more of a feeling of being at home in the natural world. Renewable energy sources would provide some conveniences, but not nearly on the scale of fossil-fueled industrialism.

This will not, however, be an automatic outcome of the energy decline. Such a happy result can only come about through considerable effort.