From my perspective as an academic, I live in the world of physics, and particularly in the world of climate change. First, I would be very hard-pressed to find any of my colleagues who did not feel very strongly about the critical situation we're facing now.
We all believe very strongly in the predictions that our best models are making, and we believe that on all the issues you've raised, we have to move forward simultaneously. There is no one issue that can be singled out as more important than the others.