Perhaps not the very best of the B. Bears books, but still really good (more of the book is dedicated to actually dealing with environmentalism than to the typical B. B. family plot--Sister and Brother spot polluters in their community and give advice on how to take care of the earth). This is a practical, readable, enjoyable book on the environment. Stan and Jan Berenstain have covered practically every other subject, and do justice to this one. It's simple, but it will stick with kids (and yes, I think it reads aloud just fine). As usual, the illustrations are great--and kids will find the story of how Papa Bear comes around to helping the environment quite funny.