These are today's best ideas
By Larry Greenemeier in Scientific American
By Alexandra Sifferlin in Time
By Sarah Fecht in Popular Science
By Paul Rubens at the BBC
By Twilight Greenaway in Civil Eats
The Aspen Institute is an educational and policy studies organization based in Washington, D.C.
TIME Ideas hosts the world's leading voices, providing commentary and expertise on the most compelling events in news, society, and culture. We welcome outside contributions. To submit a piece, email firstname.lastname@example.org.