I guess I am looking for a more market based solution. I am still confused as to how traveling in Business emits more carbon. Is the concept that my consumer spending incentivizes decreasing density on planes?

As fuel is the number one cost of operating a plane, I guess I assume the airlines have a monetary incentive to reduce fuel usage (and therefore reduce emissions) as much as possible.

I haven't read a lot of stories about airlines feeling any pressure in demand drop due to climate change. But I imagine its in their minds.