I can share my reflections on what I'm hearing today, which is that it's very difficult to tease apart cause and effects in situations where we see a lot of correlation. I think scientists and researchers struggle with that, and politicians and managers will be struggling with that kind of an issue for a long time.
Nonetheless,, as other witnesses have mentioned, there are mechanisms such as the weight of evidence approach. There's the precautionary approach, as well, that can help us navigate the situation when uncertainty is always there.