《儿童读物杂志》(Horn Book)书评
Discussing global environmental problems using straightforward language and focused content, the series gives fair consideration to the complicated nature of the issues, although the conservationist point of view comes through most clearly. The books are weakened by poor-quality black-and-white photographs, inconsistent editing, and indexes that are merely rudimentary. Bib., glos. (c) Copyright 2010. The Horn Book, Inc., a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.