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Natural Components of Climate Change During the Last Few Hundred Years

Natural Components of Climate Change During the Last Few Hundred Years
Type: 
Parallel
Time: 
17 March 2010 - 10:25am - 10:40am
Syun-Ichi Akasofu1
1International Arctic Research Center, University of Alaska Fairbanks, 930 Koyukuk Drive, P.O. Box 757340, Fairbanks, AK, 99775-7340, USA, Phone 907-474-6016, Fax 907-474-5662, sakasofu [at] iarc [dot] uaf [dot] edu

Climate change during the last few hundred years may be interpreted mainly in terms of a combination of the recovery from the Little Ice Age (LIA) and the multi-decadal oscillation, which are natural changes. Thus, there is a possibility that only a small fraction of the warming between 1900 and 2000 may be attributed to the CO2 greenhouse effect. The present halting of temperature rise may be due to the multi-decadal oscillation. In this view, the predicted temperature change in 2100 is about 0.5 degrees, if the recovery from the LIA would continue. There is an urgent need for correctly identifying natural components of climate change.

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National Science Foundation | Division of Arctic Sciences
National Science Foundation
National Oceanic and Atmospheric Administration
National Oceanic and Atmospheric Administration
International Arctic Systems for Observing the Atmosphere
International Arctic Systems for Observing the Atmosphere
Study of Environmental Arctic Change
Study of Environmental Arctic Change
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North Slope Science Initiative
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Arctic Ocean Sciences Board
Alaska Ocean Observing System
Alaska Ocean Observing System
Department of Energy
Department of Energy
National Aeronautics and Space Administration
National Aeronautics and Space Administration
World Wildlife Fund
WWF
Association of Polar Early Career Scientists
Association of Polar Early Career Scientists
Bureau of Land Management
Bureau of Land Management
International Study of Arctic Change
International Study of Arctic Change
ArcticNet
ArcticNet
DAMOCLES
Developing Arctic Modeling and Observing Capabilities for Long-term Environmental Studies

This work is supported by the National Science Foundation (NSF) under the ARCUS Cooperative Agreement ARC-0618885. Any opinions, findings, and conclusions or recommendations expressed do not necessarily reflect the views of the NSF.