Physics
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3214708m&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 14, CiteID L14708
Physics
13
Biogeosciences: Carbon Cycling (4806), Biogeosciences: Climate Dynamics (1620), Biogeosciences: Biosphere/Atmosphere Interactions (0315), Global Change: Earth System Modeling (1225), Global Change: Global Climate Models (3337, 4928)
Scientific paper
Positive feedbacks between the terrestrial carbon cycle and climate represent an outstanding area of uncertainty in simulations of future climate change. Coupled climate-carbon cycle models have simulated widely divergent feedback magnitudes, and attempts to explain model differences have had only limited success. In this study, we demonstrate that the response of vegetation primary productivity to climate changes is a critical controlling factor in determining the strength of simulated carbon cycle-climate feedbacks. This conclusion sheds new light on coupled climate-carbon cycle model results, and highlights the need for improved model representation of photosynthesis processes so as to better constrain future projections of climate change.
Eby Michael
Hawkins Barbara J.
Matthews Damon H.
Weaver Andrew J.
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