Without any judgement, maybe you have some traits that overlap with highly sensitive personality type (HSP)? I think this is discussed in Neurodiversity and iNaturalist! topic.
For me, climate change and deforestation are more matter-of-fact, they don’t emotionally trigger me and talking about them is emotionally similar to discussing morphological differences in an observation.
I think that has to do with me not being an HSP (maybe the opposite?) rather than being indifferent or resigned. I think both climate change and deforestation are important problems and should be worked against.
Therefore, for me, at least, it’s not that I have some good way of coping with these hopelessness-inducing subjects, I just don’t react strongly to them in the first place, because of personality.
Note: Am not aware enough of problems with tourism to comment.