Sensitivity of the carbon cycle in the Arctic to climate change

@article{McGuire2009SensitivityOT,
  title={Sensitivity of the carbon cycle in the Arctic to climate change},
  author={A. David McGuire and Leif G. Anderson and Torben R{\o}jle Christensen and S. R. Dallimore and Laodong Guo and Daniel J. Hayes and Martin Heimann and Thomas Lorenson and R. Macdonald and Nigel T. Roulet},
  journal={Ecological Monographs},
  year={2009},
  volume={79},
  pages={523-555}
}
The recent warming in the Arctic is affecting a broad spectrum of physical, ecological, and human/cultural systems that may be irreversible on century time scales and have the potential to cause rapid changes in the earth system. The response of the carbon cycle of the Arctic to changes in climate is a major issue of global concern, yet there has not been a comprehensive review of the status of the contemporary carbon cycle of the Arctic and its response to climate change. This review is… 

A synthesis of the arctic terrestrial and marine carbon cycles under pressure from a dwindling cryosphere

An overview of the current state of knowledge of the arctic terrestrial and marine carbon cycle, connections in between, and how this complex system is affected by climate change and a declining cryosphere is provided.

Responses in Arctic marine carbon cycle processes: conceptual scenarios and implications for ecosystem function

The current state of models and how they can be improved and/or used to provide assessments of the current and future functioning when observational data are limited or sparse are assessed.

The role of permafrost soils in the global carbon-cycle on the timescales of centuries to multi-millennia. A modelling study

The cause of the fast rise in atmospheric CO2 concentration seen in ice core data during the last glacial termination is not fully understood. Most studies indicate the deep Southern ocean as a

Observing the Arctic Ocean carbon cycle in a changing environment

Climate warming is especially pronounced in the Arctic, which has led to decreased sea-ice coverage and substantial permafrost thawing. These changes have a profound impact on the carbon cycle that

Partitioning carbon fluxes in a permafrost landscape

Arctic tundra ecosystems have acted as a historical sink for atmospheric carbon (C). Therefore, these ecosystems contain significant amounts of carbon in their frozen soils and sediments. The

Dependence of the evolution of carbon dynamics in the northern permafrost region on the trajectory of climate change

A model-based assessment of changes in permafrost area and carbon storage for simulations driven by RCP4.5 and RCP8.5 climate suggests that effective mitigation efforts during the remainder of this century could attenuate the negative consequences of thepermafrost carbon–climate feedback.

Carbon Biogeochemistry of the Western Arctic: Primary Production, Carbon Export and the Controls on Ocean Acidification

The Arctic Ocean is an important sink for atmospheric carbon dioxide (CO2) with a recent estimate suggesting that the region accounts for as much as 15 % of the global uptake of CO2. The western

Estimating the near-surface permafrost-carbon feedback on global warming

Abstract. Thawing of permafrost and the associated release of carbon constitutes a positive feedback in the climate system, elevating the effect of anthropogenic GHG emissions on global-mean

A review of and perspectives on global change modeling for Northern Eurasia

Northern Eurasia is made up of a complex and diverse set of physical, ecological, climatic and human systems, which provide important ecosystem services including the storage of substantial stocks of

The changing carbon balance of tundra ecosystems: results from a vertically-resolved peatland biosphere model

An estimated 1700 Pg of carbon is frozen in the Arctic permafrost and the fate of this carbon is unclear because of the complex interaction of biophysical, ecological and biogeochemical processes
...

References

SHOWING 1-10 OF 357 REFERENCES

Integrated regional changes in arctic climate feedbacks: Implications for the global climate system

■ Abstract The Arctic is a key part of the global climate system because the net positive energy input to the tropics must ultimately be resolved through substantial energy losses in high-latitude

Evidence and Implications of Recent Climate Change in Northern Alaska and Other Arctic Regions

The Arctic climate is changing. Permafrost is warming, hydrological processes are changing and biological and social systems are also evolving in response to these changing conditions. Knowing how

Global Change and the Carbon Balance of Arctic EcosystemsCarbon/nutrient interactions should act as major constraints on changes in global terrestrial carbon cycling

The answer to this question is critical in understanding the effects of warming on the net carbon balance of arctic ecosystems and of the earth itself.

Acceleration of global warming due to carbon-cycle feedbacks in a coupled climate model

Results from a fully coupled, three-dimensional carbon–climate model are presented, indicating that carbon-cycle feedbacks could significantly accelerate climate change over the twenty-first century.

The biogeochemistry of the river and shelf ecosystem of the Arctic Ocean: a review

Climate-carbon cycle feedback analysis: Results from the C

Eleven coupled climate–carbon cycle models used a common protocol to study the coupling between climate change and the carbon cycle. The models were forced by historical emissions and the

The transient response of terrestrial carbon storage to a perturbed climate

MODEL simulations suggest that at equilibrium, global warming driven by higher atmospheric concentrations of greenhouse gases will lead to increased terrestrial carbon storage1,2, implying a negative

Responses of high latitude ecosystems to global change: Potential consequences for the climate system

Terrestrial ecosystems of high latitudes occupy approximately one-fourth of the Earth's vegetated surface. Substantial climatic warming has occurred in many high latitude areas during the latter half

Carbon cycling in extratropical terrestrial ecosystems of the Northern Hemisphere during the 20th century: a modeling analysis of the influences of soil thermal dynamics

There is substantial evidence that soil thermal dynamics are changing in terrestrial ecosystems of the Northern Hemisphere and that these dynamics have implications for the exchange of carbon between

Acclimation of ecosystem CO2 exchange in the Alaskan Arctic in response to decadal climate warming

Summer CO2 flux data for two Arctic ecosystems from 1960 to the end of 1998 shows that a return to summer sink activity has come during the warmest and driest period observed over the past four decades, and indicates a previously undemonstrated capacity for ecosystems to metabolically adjust to long-term changes in climate.
...