b'CO 2stabilityFeaturethan previously thought to remain in the stable non-gas phaseLesperance, M., Smerdon, J. E. and H. Beltrami, 2010. (Figure 3, Lodhia & Clark 2022). Propagation of linear surface air temperature trends into the terrestrial subsurface. J. Geophys. Res. Atmos. 115(21), Determining fluid velocities in rocks on human timescales110.remains a key challenge for accurate modelling of CO 2 Lodhia, B.H., and S.R. Clark, 2022. Computation of vertical fluid migration and storage. This is area that has surprisinglymobility of CO 2 , methane, hydrogen and hydrocarbons little literature, which I for one would be keen to see morethrough sandstones and carbonates. Sci Rep 12, 10216. development. It will also be interesting to see whether recenthttps://doi.org/10.1038/s41598-022-14234-6CO 2injection experiments record the jumps in velocityTaniguchi, M., Uemura, T. and K. Jago-on, 2007. Combined expected from its fundamental chemical properties and howeffects of urbanization and global warming on subsurface these vary with surface temperatures around the world. temperature in four Asian cities. Vadose Zone J. 6(3), 591596.Westaway, R. and P.L Younger, 2016. Unravelling the relative References contributions of climate change and ground disturbance to subsurface temperature perturbations: Case studies Kurylyk, B. L. and K.T.B. MacQuarrie, 2014, A new analyticalfrom Tyneside, UK. Geothermics 64, 490515. https://doi.solution for assessing climate change impacts on subsurfaceorg/10.1016/j.geothermics.2016.06.009temperature. Hydrol. Process. 28, 31613172.41 PREVIEW AUGUST 2022'