I find it difficult to feel responsible for the suffering of others. That's why I find war so hard to bear. It's the same with animals: I feel the less harm I do, the lighter my heart. I love a light heart. And when I know I'm causing suffering, I feel the heaviness of it. It's a physical pain. So it's self-interest that I don't want to cause harm.
Climate change has been immense difficulties of pains or illness or hard life on this planet. So through that way, you have sense of concern of the well being, not sky, not just the environment itself.