They say that necessity is the mother of invention. I think the best way to learn how to stabilise the Earth is for some of us to have to cope with stabilising something much worse, something unforgiving on a timescale where there are personal consequences to getting it wrong.
Not like here, where the consequences are separated by decades or continents, or where a big pile of money can make up for any personal pain.
First we need to stabilize the Earth, dealing with the threat coming in decades, before we deal with threats that come millions of years apart.