[Xixi]

How do you make cement (and by extension concrete)? Limestone calcination: CaCO3 → CaO + CO2

The world concrete production is a larger source of GHG than the entire world fleet of trucks used for goods transportation, with some margin. And that's only accounting CO2 emitted by the chemical reaction itself, not even accounting for the production of the energy necessary for the reaction, that often comes from natural gas.

That CO2 is not being displaced by nuclear power plants, solar panels, wind turbines or batteries in fancy cars. It's being replaced by not using concrete anymore. My point is that GHG emissions go way way further than just electricity production or gasoline to power cars or planes: it's chemistry (fertilizers, concrete, etc) and metallurgy.

I don't hear much about it, not least because I think it's a very hard problem: right now, using less concrete means less constructions. There aren't enough trees, and they don't grow quickly enough, to do everything using wood, although that could be a partial solution. But the construction sector employs A LOT of people. So the path to less concrete is a path to fewer jobs, and a shrinking economy...

We are in for a very rough ride indeed.

[aniro]

There are a whole host of issues that stem from industrialization that are complex and require organized and disciplined action in order to contain. Cohesive action by the entire community of industrial nations is just not on the table at this point without some absolutely massive dislocation of economics or political power. Force is going to be required for change or desperation is going to force compliance. I can only assume based on history that this will all come to force of arms before any other rational solution (systemic enough that it will a difference) is pursued.

I just don't see any road forward without a horrifying body count. It is not impossible to avert that future, it just seems vanishingly improbable.