Why Experts Disagree

I was recently reading the March - April 2026, issue of The Science Teacher, a publication of the National Science Teaching Association. In this issue I read an article written by Douglas Allchin. He wrote an article entitled "When Experts Disagree." Respect the consensus of the relevant scientific experts. That's the benchmark for reliable science in informing public policy or personal decision-making. But what if the experts disagree? What if there is no genuine consensus? If we cannot confidently sort fact from fiction, what are we to do?