Maybe telling everyone the truth at this late stage will produce some kind of meaningful reflection. Even it doesn't, it'll still just be the status quo.
Yes but at the same time not enough people truly believed scientists when they said it was critical, so maybe people won't quite believe the "point of no return" aspect either, and will just react from the remorse of having fucked up the ecosystem. I'm not advocating that approach (yet) but just want to point that it's not a guaranteed failure.
