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Global Warming


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452 replies to this topic

#451 aribadabar

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Posted 19 February 2021 - 05:53 PM

The earth has went through several mass extinctions in the past.

 

The earth was almost completely covered in ice at one point

 

The earth was almost completely free of ice at one point.

 

Yet here we are.

 

Every day there are hundreds of new materials/physics/energy breakthroughs - assisted by ever increasing AI capability. https://phys.org/new...amo-effect.html

 

Spraying reflective substances into the air is Cro-Magnon engineering. I am talking about new technology. 

 

I am optimistic.

 

You are simply naïve.

 

The abovementioned events happened on timescales incompatible with human ones. Humankind can't/won't be interested in waiting 10 000+ years for reversal of sea levels and this can't be fixed in 50 years (what most people max planning horizon is). These processes don't work like that.

The Earth may go through another Ice Age at some point in the future but it won't be due to humans and they certainly can't do anything about it.


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#452 platypus

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Posted 20 February 2021 - 09:50 PM

Humanity can probably prevent the next ice age by manipulating the greenhouse gases composition. Unfortunately warming up the planet is easier than cooling it...



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#453 Mind

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Posted 25 February 2021 - 04:18 PM

Just another development (among hundreds this week) in the development of clean energy: https://www.nanotech...fuel-with-light

 

Obviously, creating useful fuel directly from CO2 and sunlight is basically neutral for atmospheric concentrations, but it is not hard to imagine creating a carbon form that is easily sequestered.



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