Colorado Parks & Wildlife Research Library

Drawing from the horizons of science, today's leading thinkers reveal the hidden threats nobody is talking about-and expose the false fears everyone else is distracted by. What should we be worried about? That is the question John Brockman, publisher of Edge.org ("The world's smartest website"-The Guardian), posed to the planet's most influential minds. He asked them to disclose something that, for scientific reasons, worries them-particularly scenarios...