In conjunction with the Copenhagen 2009 Climate Conference, the International Geosphere-Biosphere Programme (IGBP)  has released a new composite index of climate change that combines data from four key areas of research to reveal an unequivocal rise since 1980 in atmospheric carbon dioxide, temperature, sea level, and sea ice. The index will be updated annually, providing […]

Join our next free web seminar in our NSDL/NSTA Series: Timely Teachings: Seasons and the Cycles of Night & Day, Thursday, December 10, 2009 starting 6:30pm Eastern. We’ll review scientific principles, examine common misconceptions and formative assessment strategies, and discuss how to approach these topics by integrating science and literacy. We’ll also share resources […]