GEIA's work cuts across and contributes to all of IGAC's other activities. The GEIA inventories provide a scientific foundation for policy initiatives designed to address urgent environmental issues such as global warming, stratospheric ozone depletion, acid precipitation and biological damage. As these issues continue to become more pressing, GEIA has entered a new phase of revitalization, growth and enhanced responsiveness to an expanding user community. GEIA includes several hundred scientists all over the world, working together to create current and reliable data bases. The co-conveners work closely with an international coordinating committee.
Principles GEIA is organized around four key working principles.
GEIA inventories are accompanied by assessment of their degree of uncertainty as well as a comparison with results of top-down global or regional budget studies, if available. GEIA project teams are international and intercontinental in make-up. The hub of the worldwide network of scientific agencies and institutions that develop these emissions inventories is the GEIA Data Management and Communication Center. The GEIA Center coordinates GEIA developers and users, makes GEIA data bases available, and manages the GEIA Web Site. The focal point of GEIA data-base distribution and communication is the GEIA Web Site.