How to talk to kids about climate change without scaring them

When my 4-year-old daughter discovered the documentary series Blue Planet II, thanks to a relative who shares her love of marine life, I was thrilled that she wanted to watch it instead of animated standbys like The Octonauts and Llama Llama.  I counted it as a parenting victory: My preschooler liked science and exploration and David Attenborough's voice. When things got real and one sea creature ruthlessly ate another, I explained that it was an example of the food chain. Her grimace...