Attribution of polar warming to human influence

@article{Gillett2008AttributionOP,
  title={Attribution of polar warming to human influence},
  author={Nathan P. Gillett and D{\'a}ith{\'i} A. Stone and Peter A. Stott and Toru Nozawa and Alexey Yu. Karpechko and Gabriele C. Hegerl and Michael F. Wehner and Philip D. Jones},
  journal={Nature Geoscience},
  year={2008},
  volume={1},
  pages={750-754}
}
Polar temperatures have been warming significantly over the past few decades. A comparison between observational temperature records and model simulations shows that temperature changes in both the Arctic and Antarctic regions can be attributed to human activity. The polar regions have long been expected to warm strongly as a result of anthropogenic climate change, because of the positive feedbacks associated with melting ice and snow1,2. Several studies have noted a rise in Arctic temperatures… 
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References

SHOWING 1-10 OF 35 REFERENCES
Observationally based assessment of polar amplification of global warming
Arctic variability is dominated by multi‐decadal fluctuations. Incomplete sampling of these fluctuations results in highly variable arctic surface‐air temperature (SAT) trends. Modulated by
Twentieth century Antarctic air temperature and snowfall simulations by IPCC climate models
We compare new observationally‐based data sets of Antarctic near‐surface air temperature and snowfall accumulation with 20th century simulations from global climate models (GCMs) that support the
Arctic sea ice decline: Faster than forecast
From 1953 to 2006, Arctic sea ice extent at the end of the melt season in September has declined sharply. All models participating in the Intergovernmental Panel on Climate Change Fourth Assessment
Recent variability and trends of Antarctic near‐surface temperature
[1] A new monthly 1° × 1° Antarctic near-surface temperature reconstruction for 1960–2005 is presented. The use of numerical model fields to establish spatial relationships between fifteen continuous
Temporal and spatial variation of surface air temperature over the period of instrumental observations in the Arctic
A detailed analysis of the spatial and temporal changes in mean seasonal and annual surface air temperatures over the period of instrumental observations in the Arctic is presented. In addition, the
Variability and Trends of Air Temperature and Pressure in the Maritime Arctic, 1875–2000
Arctic atmospheric variability during the industrial era (1875‐2000) is assessed using spatially averaged surface air temperature (SAT) and sea level pressure (SLP) records. Air temperature and
Intrinsic versus Forced Variation in Coupled Climate Model Simulations over the Arctic during the Twentieth Century
Abstract There were two major multiyear, Arctic-wide (60°–90°N) warm anomalies (>0.7°C) in land surface air temperature (LSAT) during the twentieth century, between 1920 and 1950 and again at the end
External control of 20th century temperature by natural and anthropogenic forcings.
A comparison of observations with simulations of a coupled ocean-atmosphere general circulation model shows that both natural and anthropogenic factors have contributed significantly to 20th century
The Impact of a Changing Southern Hemisphere Annular Mode on Antarctic Peninsula Summer Temperatures
Since the mid-1960s, rapid regional summer warming has occurred on the east coast of the northern Antarctic Peninsula, with near-surface temperatures increasing by more than 2 degrees C. This warming
Surface air temperature and its changes over the past 150 years
We review the surface air temperature record of the past 150 years, considering the homogeneity of the basic data and the standard errors of estimation of the average hemispheric and global
...
...