"Lush, realistic watercolor illustrations.... This is a worthy introduction to a topic with perennial interest."
"The informative text and illustrations stimulate our curiosity while stressing the importance of the environment to the lives of the bears."
"Guiberson uses precise verbs and onomatopoeia to paint a picture of the daily activities of the bears while gracefully weaving in facts.... Spirin's detailed watercolors are surprisingly varied in depicting an essentially frozen world."
--School Library Journal
“A directory of environmental groups working to reduce global warming equip[s] young readers with the tools to address the problem."
--The New York Times