Politicians want our votes. They tell us that only they care enough to be trusted to sort out schools, hospitals, crime, terrorism, the economy, and tax cuts. And somehow, magically, only they and their friends are competent and honest.
But climate change is different.
If the government screws up education, the NHS, the economy and so on, it can all be put right sooner or later. But if politicians get it wrong on climate change, our planet is wrecked for good.