The reasons for the stall of climate change activism seem clear enough, but in the final analysis the efforts toward one-issue activism are simply ignored by the powers that be. The only way to change anything at this point is to change the political/social system. What else is new? The question of climate change involves the whole economy via a network of associated and linked economic sectors. We may be able to change a few things in the small, but the climate change initiative requires a revolution.
Revolutionary change is possible if people are desperate enough to risk their life on the question.