In front of the United States Geological Survey (USGS) national headquarters building in Reston, Va., two genetically identical lilac bushes are rooted in the earth. To casual observers, they are fragrant adornments to the landscaped property. But to ecologist Jake Weltzin and geographer John Jones—USGS scientists who study plant and animal life-cycle events—they are “Li” and “Lac,” two small but important pieces of a developing climate change indicator system.
PostedMay 1, 2012
Observations, Ecosystems & Biodiversity, Extreme Events
Featured on USDA , a member of the U.S. Global Change Research Program The Forest Service recently unveiled a product that helps natural resource managers rapidly detect, identify and respond to unexpected changes in the nation's forests by using web-based tools. The satellite-based monitoring and assessment tool aptly called ForWarn , recognizes