Author JOHN N. LAVIS, Professor and Canada Research Chair in Evidence-Informed Health Systems, McMaster University SOME political leaders — the Jair Bolsonaros and Donald Trumps of the world — have given the public the impression that they’re at war with the scientific community. They’ve willfully ignored evidence and trafficked in misinformation in ways that have led to botched pandemic responses and cost the lives of millions. But over the last two years, I’ve come to believe that the Bolsonaro or Trump approach is the exception, not the rule. In most countries, and across the United Nations system, it’s ignorance about…