But the talk for professionals ended with mostly stunned silence and a room full of overwhelmed scientists. The week after next I'll be giving this talk to 3 physics departments, so I need to think carefully about this response.Was it because they are all so busy that suggesting even one more thing to do is overwhelming? (Possible)Was it because the list of actions I suggest are rather futile?Was it climate grief, but for the night sky? #ProfSamLectureTour

Funny observation from driving across nearly half of Canada in the last few days: in Regina it was -25C, in Calgary/Banff it was -10C, and around Vancouver and Victoria it's been 0 to 5C. And everyone wears the same clothes (big coat, hat, scarf, gloves) in each of these places, because it's the typical cold winter temperatures. Acclimatization is impressive!#ProfSamLectureTour