No one has a solution for climate change that doesn't involve changing personal habits. People don't want to do that. Eating less meat or a carbon tax (i.e taxing the working poor) is not a solution. It's admitting defeat.
People don't need to "believe in climate change". We simply need to build a solution that is much better than what they have available now. What that solution is? Plenty of ideas, no one has a clue how to execute them.
The current strategy for the left is: let's see how guilty we can make people feel about their consumption habits and scare them with far distant consequences. Talk about funding "green"/eco-friendly businesses which barely make a difference and try to sell people on carbon tax.
For the right, the strategy is: deny, deny, deny. Double down on economic growth and hope innovation follows.
Of course, "hope and dreams" sells. Admitting defeat wouldn't get you elected. The rhetoric is adjusted accordingly.