https://dothemath.ucsd.edu/2012/04/economist-meets-physicist/ https://dothemath.ucsd.edu/2012/04/economist-meets-physicist... Even if we use 100% free renewabl

https://dothemath.ucsd.edu/2012/04/economist-meets-physicist/ https://dothemath.ucsd.edu/2012/04/economist-meets-physicist... Even if we use 100% free renewable energy with theoretically maximally efficient engines, at some point we will boil the oceans from just waste heat, as long as exponential growth in energy use continues.