Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
When peer review is broken, so is science. That is why this week, three national scientific academies — the French Academy of Sciences, the German Leopoldina and the UK Royal Society — are issuing a joint statement on how to make sure research evaluation is done well. This is the first time the societies have spoken out on the issue, and they do so at the behest of Carlos Moedas, the European Union commissioner for research, science and innovation. As foreign secretary of the Royal Society, I helped to put this statement together. I hope it will influence all involved in assessing scientists for promotion, tenure and awards.