The failure of the expert community consists of the fact that for 30 years they have continued to sidestep the question of how to kill a high-carbon lifestyle. Their proposals lacked the requirements to strip the luxury economy into an economy geared to satisfying basic needs for all (without exception) equally. They did not name nor describe it, and did not bring it up as the only safe option for climate mitigation decision making.
See also here why the expert communiy has been a dragging anchor under the status quo of the luxury economy.
See also here about getting high-carbon lifestyles under control.