NASA will hold a media briefing Tuesday, April 29, at 1:30 p.m. EDT to discuss the latest research documenting changes in Earth’s ecosystems using NASA remote-sensing data. The event will be held at The Inn & Conference Center, 3501 University Blvd. East, Adelphi, Md., Room 1312.

Panelists will discuss several topics, including the impact of shrinking Arctic sea ice on marine ecosystems, how invasive species alter the biochemistry of local ecosystems, the role of climate change on the length of growing seasons and ecosystems, and seasonal changes in phytoplankton and the consequences on marine ecosystems.

Media are also invited to a behind-the-scenes tour of the NASA-supported Global Land Cover Facility at the University of Maryland from 3-4 p.m. EDT.

Panelists are:

— Diane Wickland, program manager, Terrestrial Ecology Program, NASA Headquarters, Washington

— Gregory Asner, assistant professor, Department of Global Ecology, Carnegie Institution, Stanford University, Stanford, Calif.

— Kevin Arrigo, associate professor and director, Graduate Program in Earth, Energy, and Environmental Sciences, Stanford University, Stanford, Calif.

— Alfredo Huete, professor, Department of Soil, Water and Environmental Science, University of Arizona, Tucson

— Jorge L. Sarmiento, professor of Atmospheric and Oceanic Sciences (http://www.princeton.edu/aos/about_us ), Princeton University, Princeton, N.J.

Supporting information will be available one hour in advance at:

http:// www.nasa.gov/topics/earth/features/ecosystem_telecon.html

To attend the event or participate via teleconference, contact Kathryn Hansen by April 28th at 301-352-4638 or at khansen@sesda2.com.