By Matthias Teeuwen On Earth Day last Saturday thousands of scientists in hundreds of cities worldwide took to the streets for the March for Science. The statement they made was that science should not become subject to political restraints and that it should remain free to investigate the phenomena of this world. It was organised in the face of an increasing scepticism towards science which disregards scientific findings and scientific consensus in public decision-making. What, might we ask, is the proper relationship between science and politics? Should scientists engage with politics? And if so: in what way?