Worsening Light Pollution Has Health Costs

Nothing has captured the march of wealth and progress like any society’s ability to light up the night—first with campfires and torches, then with gas lamps, finally with incandescent lights. Franklin Roosevelt’s 1936 Rural Electrification Act was an effort both to bring modernity to the 90% of American farms that lacked electricity and to help jolt the American economy, which…

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