European🇪🇺
So I am not giving that clickbait title a view. Anyone have a summary? What is new here?
Here is the abstract in nature
Spoiler alert: “However, unexpectedly, cracks were also observed to heal by a process that can be described as crack flank cold welding (etc…)”.
For those interested: since there’s been a huge gas exctraction scandal in Groningen, (gas) mining has become a sensitive political subject in the Netherlands.
Also the Zuidwal volcano they are talking about is 2 km deep.
Geothermal energy is an interesting additional “green” option, if the mining risk can be minimised.