Geothermal, as with solar power, taps into an extant energy flux, rather than, as with fossil fuels and nuclear fission, stocks which are depleted with time.
There's a long discussion of this, dating to the late 18th century, though it's long been ignored and/or suppressed within mainstream economics. You'll find a healthy discussion in ecological or environmental studies circles, however.
Vaclav Smil in general does some of the better quantitative treatments of the problem.
There's a long discussion of this, dating to the late 18th century, though it's long been ignored and/or suppressed within mainstream economics. You'll find a healthy discussion in ecological or environmental studies circles, however.
Vaclav Smil in general does some of the better quantitative treatments of the problem.