Here is a thumbnail sketch of my position on the sustainability of economic growth. What do you think is wrong with it?
(a) energy is not scarce; the historically most efficient sources (oil, coal, etc.) are;
(b) a well-functioning price system will shift energy consumption to (cleaner) alternative energy sources as prices for historical extracted sources of energy rise;
(c) the initial high price of alternative energy will temporarily slow growth, but competition and technological progress will eventually push prices below the historical trend and even asymptotically approach zero, increasing average rates of growth;
(d) environmental quality is a global public good, but;
(e) this is most likely to be secured as a consequence of growth — as a consequence of the technological innovation that both creates and is created by growth — together with the rising scarcity and prices of the most environmentally degrading energy sources.
(f) there are no meaningful limits to growth from either the scarcity of energy, or from negative environmental externalities from economic production, since in the medium run, those externalities are positive.