Climate change already has a marked effect on the present lives of these teens (larger and more numerous forest fires, draughts, hurricanes and heatwaves).
I would also like to point out that your insinuation that mostly "obscure Amazon insects" face extinction is false and misleading.
Even by your contrived standard of "would you see them?" the extinctions will be remarkable. The world's coral reefs are visited and seen by almost 70 million tourists each year. Over half the reefs are already dead, and 90% of all reefs are estimated to be lost in less than 30 years. Of course the ecological disaster of losing the reefs will be worse than the lost sights. This is just a single example.
