"Carbon dioxide." . . . . . . . . . "Describes the environmental problems of global warming, including its causes, how it affects people around the world, and ways to reduce pollution and battle the effects of global warming." . . . . . . "Electronic books" . "Earth's fever" . . . . . . . "Juvenile works" . "JUVENILE NONFICTION / Science & Nature / Environmental Science & Ecosystems" . . "Global warming." . .