The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Add Yahoo as a preferred source to see more of our stories on Google. Brittany Jefferson teaches fifth-graders at Citizens of the World Charter School in Silver Lake. (Brian van der Brug / Los Angeles ...

What do you think of when you hear the words climate change, Brittany Jefferson asked her fifth-graders. She moved around her classroom at Silver Lake’s Citizens of the World Charter School making eye ...