Nope. There is no hope.
Only time anyone will make real, substantiative movement on climate change, is when we're in the middle of the absolute worst of it with nothing left to do but sit in and die slow, miserable deaths from heat, or quick miserable deaths from F7 tornados, Hypercanes, and biblical level flooding.
But just imagine all the profits that the shareholders would have made in the mean time, Thats really the most important part! /s