Part of the nation's physical landscape is changing. Nature writer and commentator Craig Childs has been watching the dramatic transformation of a mighty river that is running dry.
Small porpoises once swam in the brackish estuaries of the Colorado River delta. Jaguars stalked the river channels and marshes. It's not like that any more, though. The Colorado River no longer reaches the sea in Northern Mexico. It hasn't since 1983.
Many teenagers are living half their lives on social media sites, and they're writing the rules as they go. One online trend 16-year-old Temitayo Fagbenle finds disturbing is something she calls "slut shaming" — using photos and videos to turn a girl's private life inside out. Temitayo reported this story as part of the Radio Rookies program at member station WNYC.