The point that global agreements and pledges are insufficient is v solid (though still totally baffling who this is arguing against, no matter how many times I ask).

But the way it's expressed here *really* bugs me. I'm....going to try and explain why it bugs me.
First of all: this climbing CO2 PPM curve isn't just saying "climate pledges don't work" - it's saying "literally nothing we have done so far works".
Supplant Very Serious pledges and global agreements and meetings with grassroots activism, documentaries promoted by Michael Moore, shiny new technologies, aggressive divestment get the same result.

It's all pointless, terrible, and therefore shouldn't be done.
Where pledges *are* treated like they alone are sufficient - take them down several notches. But to frame them as *ineffective* - based on the CO2 PPM curve - is extremely misleading. There are millions of other factors blending in here: confounding variables.
There have been herculean efforts for vaccines and implementation of COVID19 infec controls. But that tragic curve of lives lost keeps climbing.

This tells us we've failed to do enough, but it doesn't tell us vaccine research or those controls are dead ends we should ditch.
I think there is an ugly instinct behind things like this chart (not from @dwallacewells but in wider usage). I think it becomes a way to dismiss *any* effort as a multi-decadal dead-end, perhaps to offer the 'right' way, or just to enjoy stepping on ppl trying.
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