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From a 'conversation between a physicist and an economist' [0] discussing the limits of growth: Physicist: Alright, the Earth has only one mechanism for releas
by Eddy_Viscosity2 4y ago
From a 'conversation between a physicist and an economist' [0] discussing the limits of growth:
Physicist: Alright, the Earth has only one mechanism for releasing heat to space, and that’s via (infrared) radiation. We understand the phenomenon perfectly well, and can predict the surface temperature of the planet as a function of how much energy the human race produces. The upshot is that at a 2.3% growth rate (conveniently chosen to represent a 10× increase every century), we would reach boiling temperature in about 400 years. [Pained expression from economist.] And this statement is independent of technology. Even if we don’t have a name for the energy source yet, as long as it obeys thermodynamics, we cook ourselves with perpetual energy increase.
[0] https://dothemath.ucsd.edu/2012/04/economist-meets-physicist/ https://dothemath.ucsd.edu/2012/04/economist-meets-physicist...
- guiambros 4y agoWhat a fascinating article; thanks for sharing. Much more interesting than the top one. It gave me increased appreciation for living in the period of history we're all living. I already had a perception that the fast economic growth of the last few centuries was nothing more than a fleeting blip in the history of human race, but never thought about the physical constraints imposed by energy and thermodynamics.
- deleted 4y ago[deleted]