On the other hand the human life & culture we've developed might not give us a "realistic" means for dealing with the environment and climate change. Reread wha

On the other hand the human life & culture we've developed might not give us a "realistic" means for dealing with the environment and climate change. Reread what you've written and look at it from the perspective of someone concerned about climate change, whose read the reports that we're likely to see effects of it within our lifetimes, and who lives in a world where the response to a progressively worsening disaster is ranges from "not my problem", "don't be so negative", to "what can we do?". Young people today are born into a world with a considerable amount of inertia leading it to a not so happy place. The evidence points to this not being just pessimism, but a reality they will have to face and deal with in their lifetimes. Rising sea levels, political instability as once habitable and arable land become inhabitable and barren, increasingly sever weather, etc. Pessimism and optimism in this case refers to how severe these problems will be and whether we can either put them off or mitigate the consequences, not whether or not they are happening.