When we read If You Spent a Day with Thoreau at Walden Pond, we imagine wading in the pond with Thoreau, sitting on a carpet of pine needles together, walking through forest trails together, watching ant wars, and chasing a fox. We imagine drinking cold, clean Walden pond water, and picking and eating huckleberries together.
I like the idea of reading books for Earth Day that celebrate nature and that remind us how wonderful it feels to be in it, rather than urgent or scary books about what we need to do, especially for small children. I think the deepest, most sustainable action comes not out of fear or guilt, but out of love. I think love is the place to start, especially with children.