If you want to convince me that climate change is a clear and present danger, you need to change my biases on three things:
1. Convince me that complex models such as the climate science models have done good jobs in other fields in the past. And the examples have to involve human judgement in the inputs, and lots of iterations. And those models have to have succeeded in predicting the future five years out, or better. If such things exist in other fields, I can be persuaded that climate scientists can do it too. (No fair picking physics models. Those are not filled with human assumptions.)
2. Convince me that economic models of this complexity have done a good job predicting the future in other areas.
3. Erase my memory of all the times mass delusions looked totally real to smart people.
If you want to make me worry about climate change, working on my biases by changing my pattern memory has a better chance of persuading me than the current method of calling me an idiot.