2. Carbon sources and sinks, their changes and trends
3. Direct and indirect effects of high CO2 concentration in a warmer world
4. Future of the carbon cycle and climate
?The conference will consist of invited and selected plenary presentations covering all fields of global carbon cycle research. Several extended poster sessions and a few parallel sessions on specific topics will complement the plenary. Participants will be asked to submit an extended abstract, which will be compiled into an electronic abstract volume prior to the conference and made available to all participants. Proceedings will be published as refereed papers in a special volume of Earth System Dynamics.