Scientists and policy makers often look at the world in quite different ways. Policy makers put up guidelines to help achieve certain outcomes while scientists try to find out how things really are.When a policy decision is made on an issue that bears on scientific knowledge, there is a coordination problem between policy makers and scientists: Scientists first gather data, and when there’s enough evidence to draw a certain conclusion, that conclusion becomes part of the corpus – the scientific knowledge which at a given time could be written in a…