Scientists have had a rough year. The leaked “Climategate” e-mails painted researchers as censorious. The mild H1N1 flu out­break led to charges that health officials exaggerated the danger to help Big Pharma sell more drugs. And Harvard University in­vestigators found shocking holes in a star professor’s data. As policy decisions on climate, energy, health and technology loom large, it’s important to ask: How badly have recent events shaken people’s faith in science? Does the public still trust scientists?