Terrestrial models and global change: challenges for the future


George C. Hurtt, tel +1/609 258-3868, fax +1/609 258-1334, e-mail gchurtt@princeton.edu


A wide variety of models have illustrated the potential importance of terrestrial biological feedbacks on climate and climate change; yet our ability to make precise predictions is severely limited, due to a high degree of uncertainty. In this paper, after briefly reviewing current models, we present challenges for new terrestrial models and introduce a simple mechanistic approach that may complement existing approaches.