There are people who say that the planet isn’t warming (pre step 1), that it’s warming as part of a natural cycle (pre step 1), our impact is negligible (pre step 1).
Hell, we share this planet with people who truly believe it is flat, and that every image of a round world is part of a giant conspiracy. I’m not saying that they are the same people as the AGW deniers.
Seriously, let's get beyond the flat earther meme. The number of people who deny the planet is warming is very small and they are irrelevant.
To what extent humans have contributed to the problem is also irrelevant. Even if it was a natural cycle , there is still a Climate warming problem, and we must deal with it.
If we keep excluding people by insulting them, or ask people to sign up to quasi religious ideologies, how can we discuss solutions rationally.
We must overcome the fear of change and present properly costed solutions - not saying renewables are cheap and forgetting to mention the enormous cost of grid stabilisation and storage (which is currently provided for free by synchronous generators).
Tesla is disrupting mainly traditional industries and our enthusiasm for its mission is spreading, especially to the younger generations.
But I think even Tesla will be too late to enable renewables to take over completely soon enough , so we need the Technological fixes too.