I really don’t know what to think about it. In (my) ideal world experts would provide information to the public and to policy makers, who would accept this information and take it seriously. We could then discuss if we should do something, given this information, and – if so – what we should do. I, of course, realise that this is naive and that this is nowhere close to how we go from information to action. There are many factors that influence how we might, or might not, respond to information. If people really think we are doing way too little to address a very important issue, then some kind of peaceful protest could be reasonable.
I certainly think we are doing far too little, but I’m not sure of this is either the right way to encourage action, or if it’s going to be effective. Also, even though the impacts could be extremely serious, this is very unlikely to be an extinction event (for us, at least). My intention had actually been to suggest that we have an open thread about this, so I’ll leave it at that and would be interested in what others think about all of this.