permeability is not the only problem with getting oil and gas out of the ground. there are many other mining technologies witch have only come up relatively recently, all of them are expensive & extremely invasive to the environment. the overall scheme is that we always seem to exploit the easy-to-access resources first. and that is a precautionary tale for all other finite resources.
#limitstogrowth
#overshoot
#climatechange
#peakoil
#collapse
#collapseology
#sustainability
#resilience