We can't people to stop murdering each other, stealing, lying, or many other harmful things.
You are arguing that propaganda is the solution to climate change. That manipulating people by appealing to their emotions will lower the carbon in the air.
But, you are missing that whoever controls the best manipulation tactic decides the outcome of that manipulation. Want to guess who that will be? The rich and powerful is my guess.
I think we could fix the climate in one simple way, stop polluting. The problem with this is that then the US isn't the biggest polluter, so that is not a "feel good" message.
As adults we have to do things we don't like every day to achieve our goals. We have to choose things that make us unhappy and miserable so our kids have food. Emotions are more often our enemy than our friend.
Science and truth are always neutral, and must be the basis of decisions, unless you are going to agree that we must act like adults and tell everyone they need to chose misery to make a change.
I agree with that, but the people saying it aren't doing it first. That is hypocrisy and the worst form of leadership, and is the enemy of change. Therefore, until the current hypocrite leaders of climate change are replaced with honorable doers, nothing will change.
And shaming the followers into following hypocritical leaders is a recipe for disaster. Hypocrites have no moral base, and act to their own benefit, not yours, the planets only their own.