This book is about the scientific study of the interactions between forest ecosystems and the atmosphere. The authors look at this complex field that “extends in scale from the physiology of intra-leaf organelles to the meteorology and carbon sequestration of whole forest ecosystems,” as noted by the University of Edinburgh (School of GeoSciences) editors. They present 17 papers from the September 2001 conference from which this volume derived its name. Topics include the role of stomata in transpiration and leaf respiration, methods of estimating carbon sequestration, the effects of forests on mesoscale atmospheric processes, remote sensing of forest canopy characteristics, and policy making and forestry implications.