Next Article in Journal
From Climate Advocacy to Public Engagement: An Exploration of the Roles of Environmental Non-Governmental Organisations
Previous Article in Journal
Climate—A New Open Access Journal Covering the Complex, Multi-Disciplinary Climate Research Challenge
Article Menu

Export Article

Editorial published on 12 September 2013, see Climate 2013, 1(2), 74-75.

Comment published on 19 September 2013, see Climate 2013, 1(2), 76-83.

Open AccessArticle
Climate 2013, 1(1), 4-11;

On the Present Halting of Global Warming

International Arctic Research Center, University of Alaska Fairbanks, USA
Note added by the Publisher: This paper attracts great attention. Please refer to our policy regarding possibly controversial articles.
Received: 28 January 2013 / Revised: 15 April 2013 / Accepted: 15 April 2013 / Published: 3 May 2013
Full-Text   |   PDF [810 KB, uploaded 3 May 2013]   |  


The rise in global average temperature over the last century has halted since roughly the year 2000, despite the fact that the release of CO2 into the atmosphere is still increasing. It is suggested here that this interruption has been caused by the suspension of the near linear (+ 0.5 °C/100 years or 0.05 °C/10 years) temperature increase over the last two centuries, due to recovery from the Little Ice Age, by a superposed multi-decadal oscillation of a 0.2 °C amplitude and a 50~60 year period, which reached its positive peak in about the year 2000—a halting similar to those that occurred around 1880 and 1940. Because both the near linear change and the multi-decadal oscillation are likely to be natural changes (the recovery from the Little Ice Age (LIA) and an oscillation related to the Pacific Decadal Oscillation (PDO), respectively), they must be carefully subtracted from temperature data before estimating the effects of CO2. View Full-Text
Keywords: global warming; Little Ice Age; multi-decadal oscillation global warming; Little Ice Age; multi-decadal oscillation

Figure 1

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Akasofu, S.-I. On the Present Halting of Global Warming. Climate 2013, 1, 4-11.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Climate EISSN 2225-1154 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top