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Nuccitelli et al 2012 Total Heat Content
Global warming is sometimes thought of as just an increase in the air temperature, and it is a recurring myth that global warming has magically stopped whenever there is a pause in the long-term trend of increasing air temperature. However, heat is exchanged between all parts of the Earth System, and the oceans can hold vastly more heat than the air. Global warming is actually the total accumulated heat in the whole Earth System that results from the imbalance between incoming solar energy and outgoing heat and reflected energy. This figure from Nuccitelli et al. (2012) [PDF] shows the change in the total heat content of the Earth System since 1960 in terms of its major components: the total land, atmosphere, and ice heating (red) from Church et al. (2011), and the ocean heating for the 0-700 meter layer (light blue) and the 700-2,000 meter layer (dark blue) from Levitus et al. (2012).
More than 90% of global warming goes into heating the oceans, while less than 3% goes into heating the atmosphere. Even relatively small exchanges of ocean heat with the atmosphere, as occurs during the El Niño Southern Oscillation (ENSO), can produce short-term fluctuations and pauses in the increasing air temperature.
Download the data used in this figure
SkS Resources that use this Graphic
- Nuccitelli et al. (2012) Show that Global Warming Continues
- What Has Global Warming Done Since 1998? (intermediate)
- What Has Global Warming Done Since 1998? (basic)
- Global Warming and Step Functions
- Did Global Warming Stop in 1998, 1995, 2002, 2007, 2010?
- Global Warming and the El Niño Southern Oscillation
- Human Activity Continues to Warm the Planet Over the Past 16 Years (intermediate)
- Human Activity Continues to Warm the Planet Over the Past 16 Years (advanced)
- Misleading Daily Mail Article Pre-Bunked by Nuccitelli et al. (2012)
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- 2012 in Review - a Major Year for Climate Change
- Observed Warming of the Ocean and Atmosphere is Incompatible with Natural Variation
- Resolving Confusion Over the Met Office Statement and Continued Global Warming
- Dueling Scientists in The Oregonian, Settled by Nuccitelli et al. (2012)
- Did Murdoch's The Australian Misrepresent IPCC Chair Pachauri on Global Warming?
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- David Rose Hides the Rise in Global Warming
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