>climate change has a huge political connotation Isn't this begging the question? Climate change has a political connotation exactly because conservatives beli

>climate change has a huge political connotation Isn't this begging the question? Climate change has a political connotation exactly because conservatives believe it's made-up, and the only way they can square this counterfactual with the huge number of independent confirmations is the assumption that they are all somehow in cahoots - i.e., a conspiracy. While I agree that a less politicized choice of topic would be more enlightening, I can imagine that going out of your way to avoid "political" topics may just be an exercise in mitigating the very effect you're trying to measure.