Claim · model-written summary
Most Earth System Models failed to predict the observed growth declines.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingDirectionValueQualifier
Verbatim
e0“most of the models did not predict these growth declines”
e1“seven Earth System Models”
e2“tree‐ring data from old‐growth, subalpine forests of western Canada”
Title
Oleksandra Hararuk; Elizabeth M. Campbell; Joseph A. Antos; et al. Global Change Biology 2018. doi:10.1111/gcb.14561
Other claims from this paper (6)
- Observation Nineteenth century tree growth was mostly stable or increasing.
- Observation Tree growth decreased slightly during the nineteenth century at one coastal site.
- Observation Twentieth century tree growth consistently decreased across species and sites.
- Mechanism The twentieth century growth decline indicates no CO2 fertilization effect on photosynthesis.
- Mechanism The authors infer that old-growth forests are unlikely to increase carbon storage with rising atmospheric CO2.
- Mechanism The authors infer these forests are unlikely to substantially offset future carbon emissions.