I was just listening to that. Incredibly frustrating that David Santillo totally failed to call out the nonsense about "ongoing spraying". Surely that should have been the very first thing that he said after George Barnes and Dane said their piece. Instead he waffled and said many things that could be seen as an "admission" that deployment has already occurred. The scientists really need to understand what they are arguing against. I think the problem is that there is such a gulf between the two sides' understanding of "geoengineering" that they don't even realise what is being said.