Ikon Images/Corbis

A man walks through hundreds of pairs of shoes displayed in Paris as part of a rally called "Paris sets off for climate" on Sunday, Nov. 29. More than 140 world leaders are gathering around Paris for high-stakes climate talks this week. Laurent Cipriani/AP hide caption

toggle caption Laurent Cipriani/AP

No gambling here: When asked to weigh financial choices, teenagers were more likely to make careful choices than were young adults. David Chestnutt/Ikon Images/Corbis hide caption

toggle caption David Chestnutt/Ikon Images/Corbis

NPR thanks our sponsors

Become an NPR sponsor