Interestingly the participation at the conference I was just at in Vancouver was an all time high. Why? More and more Cdn academics are boycotting US-based conferences and organizations (and staying in Canada instead) until the US completely removes any idea of that travel ban, removes Pruitt from the EPA, re-joins Paris Accord, etc. etc. (the list seemingly grows daily). I have some colleagues that have decided to the avoid going to the US even on holiday.
Drumpf's policies are resulting in a reversal of the Canada to US 'brain drain' with applications by Americans to Canadian undergrad, grad school and academic positions all rising.
The very large national water research project I'm involved in will have (all-in) over 500 hires (undergrads, grads, postgrads, academic positions). There was concern about recruitment and being able to fill the positions. Drumpf and Brexit changed that concern to a water innovation opportunity for Canada.
Ironically, this may galvanize everyone else to do better than they would have. I like the idea of the unofficial U.S. consortium becoming part of the Paris Accord.