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The AMOC is slowing, it’s stable, it’s slowing, no, yes, …

Real Climate

In the real ocean that is not an observed quantity. While these simulations assimilate observational data, over most of the ocean surface these are basically sea surface temperatures, but surface heat loss depends also on air temperature, wind speed, humidity, radiation and cloud cover in complex ways, all of which are not accurately known.

Ocean 362
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Not just another dot on the graph?

Real Climate

First, it’s been obvious for months that 2023 would be a record year – in temperatures (at the surface, troposphere and in the ocean), in Antarctic sea ice, in the number of big climate disasters etc. Only the jump from 2014 to 2015 (coincidentally (?) Why oh why? So why was 2023 so special? 2023 ; Roach et al., Roach, K.D.

Ocean 362
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The water south of Greenland has been cooling, so what causes that?

Real Climate

Here we start by taking the Greenland mass loss rate into the ocean, times the temperature difference between the meltwater and the water it replaces. For the part entering the ocean as ice, we must also consider that to melt ice requires energy. Greenland ice melt. or other estimates). References. Trenberth, K. & Fasullo, J.

Cooling 363
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New Reports Ahead of COP29 Show The World Is Spinning Its Wheels on Climate Action

Inside Climate News

By Bob Berwyn A trio of reports released ahead of next month’s COP29 climate conference in Azerbaijan all show that the existing national policies to cut greenhouse gas emissions under the landmark 2015 Paris Agreement will heat the planet by close to 3 degrees Celsius by 2100, as warming has accelerated in the past few years.

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New misguided interpretations of the greenhouse effect from William Kininmonth

Real Climate

2015) , and this is also applies to Kininmonth’s calculations. Such a hypothetical slowdown would suggest weaker ocean surface warming in the high latitudes, which is not supported by data (Figure 1). 699-703, 2015. It is also important that such calculations and models are thoroughly evaluated (Benestad et al., Nuccitelli, S.

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Another dot on the graph

Real Climate

Unlike in years past, there is no longer any serious discrepancy between the records – which use multiple approaches for the ocean temperatures, the homogenization of the weather stations records, and interpolation. Southern Ocean trends. The least visited part of the ocean are the waters around Antarctica. References.

Cooling 362
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Advancing Ocean Climate Action at COP27

Ocean Conservancy

Representatives from civil society, non-governmental organizations and the private sector gathered alongside governmental representatives to influence decisions and advance contributions toward the goals of the Paris Agreement of 2015. I was joined by Ocean Conservancy colleagues working to advance ocean-climate action.

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