1) The document summarizes a study that examined how policymakers access scientific knowledge through a literature review, expert interviews, and case studies and surveys. 2) The study found limited integration of scientific knowledge into policy, with competing sources of evidence and tensions between researcher and policymaker interests being common challenges. 3) Surveys of researchers, intermediaries, and policymakers found most were dissatisfied with access to scientific knowledge and identified major obstacles like lack of relevant scientific information and limited communication and interaction between scientists and policymakers.