To me you have a mixture of good and bad in this post. I agree completely temperature rise is already an existential crisis, and as we are seeing, a lot of folk will deny it, until it hits them over the head, maybe on the last remaining part of habitable Earth they could retreat to, having failed miserably to launch rockets capable of taking them off Earth completely.
But I don't agree with your conclusion that solar is "Not an easily scaled sustainable solution".
This is a misperception, perpetuated by the pseudo-sciency that is "Renewables", itself actually fully dependent on the continuation of energy by extraction.
Nuclear energy is just more energy by extraction - it comes from fuels on Earth, things that were created by cooling heat energies that existed long ago, but by using now, we convert some of those materials back into the heat energy they were created from, thus generating heat energy on Earth, which would not happen, if we didn't take that material and use it to extract our energy from it.
Notice this is outside the considerations of temperature rise arguable one way or another as a result of the blanketing effect of CO2, this is undeniable thermodynamics, explained most simply.
In contrast, notice what happens in the case that we convert Joules of energy from the sun into anything other than heat, we reduce the heating effect of the sun on Earth, by putting solar energy which might have generated heat by just falling on Earth, to our own use.
Only solar energy use, has this positive effect on temperature. All other energy use, is the opposite, contributing to temperature rise.
Notice how the cooler periods on your charts coincided with higher levels of biomass. Nature was and is carrying out this process of cooling by creation throughout. More plants means more creation, therefore less temperature rise, it all stacks up, use of energy extracted from Earth should be signed as mathematically negative, whilst use of energy from the sun is the opposite, mathematically positive, characterising Earth as a kind of battery, trickle charged by nature using the energy of the sun, we just bulk discharged it by taking it all from Earth.
Now we have an energy debt to our planet which has to be paid back, the only way it can be, by putting the energy of the sun to our human use, which is vastly accelerated, relative to nature.
Only we can charge it back up, and keep charging it thereafter, using the energy of the sun.
Profit driven industry, is all dependent on energy extracted from Earth.
Profit itself is dependent on using energy extracted from Earth.
Hence why now science has to shake off this pseudo-science of "Renewables", and get on with promoting the only solution, which is technically not difficult at all, just some work, the work of installing enough solar-hydrogen infrastructure to replace what profit driven utilities industry used to supply.
That would only take a year or so, with current standard, conventionally available equipment, after issue of the funds needed to all poeple, to start this work.
Those funds, exist, in the form of historical unmonetised solar product put to economic use, yet never monetised, since money issued as debt can't monetise Joules of energy which were donated for free, from a donor asking nothing in return, the sun.
Because we don't do this, whilst solar energy use ramps up inevitably in any case, money is progressively coming to represent nothing, as we can see, at a rate which will remove all value from all money, before longer term projects like nuclear can even be implemented.
Nature, has put an end to all those profit driven ambitions of massive extracted energy use.
We are on a time fuse now of money devaluing rapidly.
There will come a point, if it is not issued in time, where it will become too late, to even issue what is needed to do the work of 100% domestic and community solar hydrogen installation, thus recovering the value of currencies.
This is whilst the benefits of solar backed by hydrogen have been thrashed out now, to reveal that all batteries can be replaced, all air and space transport can be back in the air, that new ecosystem would come with both water circulation and filtration characteristics, and even the ability to generate food independently of the conventional food chain, from hydrogen (See "Solein")
Anyone can read more about all of this in the stories in my profile.
We seem to be waking up, but not fast enough, imho.
