“…Fourthly, they claim that they include viscous dissipation "for the first time" but in fact there are several 10s of papers on mantle convection that include this term -basically anything study that uses a compressible approximation. Here are just a few examples to get them started: (Balachandar et al, 1993;Glatzmaier, 1988;Jarvis and McKenzie, 1980;Leng and Zhong, 2008;Tackley, 1996).…”