Have you looked at the case where hydraulic fracturing occurs in the distant future?

This scenario has been previously brought to our attention as a variant of the inadvertent human intrusion scenario. The issue can be partially mitigated by defining the presence or absence of recoverable and economically viable natural resources as a siting criterion, or by specifying appropriate requirements for the host rock (e.g., requiring a minimum clay content or ductility parameter for the shale, making hydrofracturing ineffective and the host rock unsuitable for resource extraction by hydraulic fracturing).