The difficulty is partly structural. Academic incentives reward novelty and publication; institutional incentives reward timely, actionable answers. Disciplines describe the same phenomenon in incompatible terms, so an economist, an engineer and an epidemiologist can study one cascade without being able to combine their findings. Evidence produced in a few well-funded countries is applied in very different contexts, and local knowledge rarely flows back.
There is also a question of interpretation. The same evidence can support different conclusions depending on values, risk tolerance and the decision at hand. When interpretation happens behind closed doors, or when advocates present uncertain findings as settled, trust in evidence erodes. Research on the science-policy interface consistently finds that structured, transparent dialogue between researchers and institutions improves both the relevance of research and the quality of its use.
Comparative learning adds a further layer. Countries and institutions facing similar risks have built very different arrangements for commissioning research, using scientific advice and correcting course. Some of those arrangements have been tested by crises and some have not. Seeing how others work, including what failed, is often the fastest way for an institution to improve its own practice.
Research Nexus exists to host that dialogue. It does not produce or certify science. It brings researchers and institutions together, compares how different systems learn, records what was discussed and agreed, and feeds unresolved questions back to those who can research them.
Why now: new science-policy bodies are starting work, including the UN scientific panels on artificial intelligence and on chemicals, waste and pollution established in 2025, while public institutions face contested evidence on heat, health and technology. Research Nexus convenes researchers and decision holders in recorded dialogues; with participants' consent, its records can inform the Evidence Brief series of Reports, and recurring gaps in how evidence is described can be filed as change proposals to the Nexus Standards.