[M-IS31_2AM1] Towards Comprehensive Global Warming Studies by Multidisciplinary Liaison

[MIS31-06] Findings in climate change and global carbon cycle from model inter-comparison analyses

*Tomohiro HAJIMA¹ (1.Japan Agency for Marine-Earth Science and Technology)

Interactions between climate and carbon cycle are essential for making long-term climate projection, since some part of carbon cycle processes in land and ocean display slow responses to environmental change in a longer timescale, with giving feedbacks on climate. Climate-carbon cycle models, sometimes referred as "Earth system models (ESMs)", have been developed and utilized for the long-term climate projection. Recent model inter-comparison analyses have revealed some problems in the models, and provided new findings on climate-carbon cycle relationships. For example, a new index "TCRE" is introduced in the latest IPCC report. This index can capture the entire response of global climate-carbon cycle system to anthropogenic CO2 emission, with suggesting some useful political messages. In this presentation, new findings on climate-carbon cycle system such as TCRE will be reviewed, based on the results from model inter-comparison analyses.