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The earth isn't a closed system and has a "Energy Budget": https://scied.ucar.edu/learning-zone/how-climate-works/energy-budget https://scied.ucar.edu/learning
by AndrewKemendo 3y ago
The earth isn't a closed system and has a "Energy Budget":
https://scied.ucar.edu/learning-zone/how-climate-works/energy-budget https://scied.ucar.edu/learning-zone/how-climate-works/energ...
Humans have decreased the rate that the earth dissipates heat into space, and even small changes can cause large feedback loops that we care about because Humans can only survive within a TINY threshold of temperature variance [1].
Over the long term (~100-200k years) it will probably go back to some kind of pre-human equilibrium - with the very long term earth being mathematically uninhabitable based on the increasing amount of radiation that will bombard the earth as the Sun goes Red Giant.
[1]https://twitter.com/AndrewKemendo/status/1681703538181668869 https://twitter.com/AndrewKemendo/status/1681703538181668869
- coryrc 3y ago> Humans can only survive within a TINY threshold of temperature variance Don't be obtuse.
- 4gotunameagain 3y agoWell he has a point. Humans survive from what, -40C to 40C ? Given Earth's record temperatures of -89.2C to 56.7C, sure, we can survive in a large chunk, but the mean temperature of cosmic gas is 2.2 million deg C
- coryrc 3y agoWhen talking about climate, it is not relevant that we are unable to live in the sun.
- 4gotunameagain 3y agoWhen talking about planetary temperatures, it is relevant that we cannot live in Venus, at 475C, or Mars, -60C. It is not inconceivable that we mess things up so much that peak temperatures move by double digits, in which case it will be evident if our temperature range is tiny or not
- coryrc 3y agoNo one is predicting that much temperature rise.
- 4gotunameagain 3y agoI said it is not inconceivable, not that it is predicted.