How to replace fossil fuels, whilst even reducing temperature, I've said it before but maybe in a way you didn't understand, or think is disputable.
Here it is, in numerically verifiable form:
A domestic community scale (shared between two or three houses) 2.4 KW electolyser such as Enapter, produces 1kg hydrogen every 24 hrs.
Every kg produced is 39kWhrs removed from the heating energy of the sun, so this is removed from being applied to the thermal mass of the planet.
The US has at 300 million people.
If the number of domestic electrolysers was a third of that population, then you would be producing 100 million kgs of hydrogen fuel per day.
That is more than enough to put all your aerospace back in the air again, and still be building up a thermal heat sink that would come to replace the one lost by fossil fuels.
Notice we didn't even need to talk about greenhouse gases, here, it transcends greenhouse gas discussions, and actually should be allowed to supersede the latter, it's much simpler.
And look, hydrogen converts to both food and water, when push comes to shove as it allways does (see Solein).
it does everything fossil fuels does, but more, and all use of it results in the opposite of pollution, things beneficial to life, even biologically compatible plastics. (Again food of a kind).
This is the diifference between using energy direct from creative source vs energy derived from destroying things that nature created in the first place by it's use of creative energy at source.
Our entire activity changes from unsustainable destruction, to infinitely sustainable creation, the instant we start monetising solar product, so the instant we issue solar indexed stimulus, honestly reflecting the massive value of product created by solar, both historically and ongoing, the problem is fixed.