Magazine
Harnessing limitless energy

March 29, 1974

As independent, idealistic inventors forge ahead with plans to heat buildings with the sun, traditional institutions and businesses are taking cautious steps in the same direction.

Feature

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Harnessing limitless energy
As independent, idealistic inventors forge ahead with plans to heat buildings with the sun, traditional institutions and businesses are taking cautious steps in the same direction.
Solar powered history
A photo essay on the history of solar power.

Perspective

Rangers to restore fire in the Tetons
A National Park Service plan to use "safe," prescribed wildfires to restore pristine ecological conditions in Grand Teton National Park may signal the end of the Smoky Bear era.