A recent commentary in Nature Climate Change looked back at a model projection made using a coupled ocean-atmosphere model back in 1989 and compared the projected pattern to the pattern that has been observed. It’s a qualitative comparison which highlights various aspects of the projected change – greater warming over land than oceans, greater warming at high northern latitudes, a minimum of warming over the Southern Oceans and North Atlantic – which are present also in observed changes over the past 27-ish years. Doug McNeall noted that the map projections used in Figure 1 of the paper give a visual weight to higher latitudes that is out of proportion to the area they actually cover. A different projection might give a different impression and so…

The preceding paragraph is really just an excuse for me to wrap some more things on spheres and animate them, which is how I’m amusing myself at the moment.

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