Few argue that the climate isn’t changing. However, we don’t know fully how much is correlation vs causation. We also don’t know what the best temperature is or how much co2 is ideal for us, let alone everything else on the planet. If we want to pin sea levels and temperatures to late 20th century amounts, I suspect we will be on a fools errand, no matter what we do.
The alarmism that the ‘damage’ will be irreversible and that we have just moments to act is straight out of the playbook of how to manipulate the masses though. Frighten the populous enough and they will do anything you ask. We do not have evidence of runaway warming and there is certainly precedent for the planet being hotter, having less ice and more co2.
It would see sensible to consider our impact on the environment as a whole though. Mass deforestation has been going on for decades and clearing yet more or it to make biofuel with net negative benefits would seem counter productive. https://www.google.com/amp/s/news.mongabay.com/2018/10/tropical-deforestation-now-emits-more-co2-than-the-eu/amp/
Perhaps if people started by eating less meat and planting more trees, the rate of co2 increase could be moderated through more natural means? It would certainly align us more closesly with our historic diet and landscape and biodiversity. It would probably help reduce obesity too, especially if those forests were used for more recreation.
I also suspect that self driving cars will have a profound effect, which is driven by consumer demand, rather than guilt. When fleets of autonomous vehicles, build to last and to be shared with privacy, remove the need for everyone to have their own, energy use will plummet. People will also be productive during their commute instead of watching the car in front. Maybe people will even realise that sharing the benefits of progress, instead of giving it all to rent seekers, means less work to do too.
I remain optimistic that humans will become more symbiotic with their environment again and I remain skeptical of doomsday scenarios trying to instil fear. Somewhere down the middle, we will probably be all right.