This current feature from NASA's Earth Observatory focuses on the use of a new type of vegetation measurement called the leaf area index (LAI). The four page article describes how trees moderate climate, and how scientists think the LAI will be useful in modeling global climate change. The text is written for a general audience and includes images showing what LAI data actually looks like. When...

Teacher and Gingko enthusiast Cor Kwant, from the Netherlands, offers this comprehensive Web site devoted to Gingko biloba. This frequently updated site covers just about everything there is to know about this "unique tree, a living fossil, unchanged since the time of the dinosaurs." Visitors may read about gingko history, propagation techniques, botanical characteristics, various uses, and much...