A major effort involving over 2,000 scientists will attempt to survey the health of planet Earth's ecosystems. Gewin (2002) gives an overview of the project, which is co-chaired by Walter Reid, formerly with the World Resources Institute in Washington DC, and Harold Mooney of Stanford University. Visit the Millennium Ecosystem Assessment website.
Reference
Gewin, V., 2002: The state of the planet. Nature, 417, 112-113.