Worldwide concern about increases in greenhouse gases and their potential effects on global climate change has brought attention to what scientists are calling the missing C question. This publication delivers information on soil C sequestration in croplands, range lands, forest lands, and set-aside or CRP lands in the United States and Canada. A state-of-the-art knowledge compendium, this text will be valued by environmental scientists, and is also a well-written, accessible addition to the classroom.