I think I'm proposing fewer solutions and claiming fewer declarative answers than you think
Of course we can find cases where there are core differences and little if any common ground. I don't think you're suggesting there is none in any area and that the divide between parties and citizens including how they enter into a dialogue with prejudice is currently exactly as it must be? Surely there is common ground between you and I that there is potential for improvement in this area?
I think you know more about the details on the pollution topic than I, but I will humbly submit that it's not the pollution that anyone wants. It's jobs, profit, etc, and clearly people will vote for things that are at their root obviously bad due to their perceived value to individuals or corporations.
Perhaps starting with a premise like: what if you kept your job, profit, or anything else you care most about, but we could also reduce pollution by X, would you be willing to discuss this? Perhaps that is impossible, perhaps it would require govt subsidy or other incentives to secure corporate participation, I don't know. It feels like at the root, there is more common ground than most can see, but maybe not continents... Iceland perhaps. Feels worthwhile to find it whenever possible. No?