I feel on top of the world!

Knowing that it's a big big sphere (well, almost,) I know I am almost 100% right^*. It's exhilarating! And it's nice to know that it's not lonely here, at the top. Some six billion other human beings, and a trillion other animate and inanimate objects.

Ah, suddenly, it feels so crowded! Almost suffocating? Surprisingly, no. There's enough room. Enough oxygen. Enough for some more years, I guess. We (humans) are quite good at desecrating anything which is Good. We'll soon be left with no rocky mountains, but cement ones. No more metals for mining. All in the air and buildings. No soil for making bricks, or growing food. No trees. No forests with animals. No deeply blue, lively seas. No humans.

Why don't we conserve?