Not that surprising. People tend to focus on their own personal/economic issuea rather than larger problems in the world as a whole. If you're struggling to pay rent, find a good job, keep up with others, get political representation etc, then stuff like global warming won't really register by comparison.

On the other hand, I suspect those with decent living conditions are probably more panicked about stuff like climate change. Feels you can focus more on big picture issues if your immediate lifestyle is going somewhat to plan.