Well, those coins would be uncomfortable to hold in your pocket at 194.7 K (−78.5 °C; −109.2 °F), but there are some initiatives for pulling solid carbon out of

Well, those coins would be uncomfortable to hold in your pocket at 194.7 K (−78.5 °C; −109.2 °F), but there are some initiatives for pulling solid carbon out of it [0]. There's even an XPrize for doing "stuff" with co2 [1]. 0: https://www.sciencedaily.com/releases/2022/01/220119121411.htm 1: https://carbon.xprize.org/prizes/carbon