After the invasion, CERN paused publication of papers in scientific journals due to a dispute over how to acknowledge Russian contributions. A workaround was announced, whereby Russian scientists can appear on papers, but the Russian institutes they're affiliated with can't. John Spine-Wigland-Rotham is a senior researcher at the Fritthof-Nansen Institute in Norway. One of his main areas of research is science policy and the Arctic Council. So, how well was collaboration with Russia working before the invasion?