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Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...

The practice of deliberately setting forests on fire to clear out flammable debris reduces air pollution from later uncontrolled fires — an effect that has long-term health benefits 1. Land managers ...

TV's leading extreme obstacle course is back. "American Ninja Warrior" Season 18 is set to kick off on Monday, June 8, bringing together a slate of elite athletes competing for a $250,000 grand prize.