I would open a box.
Humanity will destroy itself and create hell on earth very soon, anyway.
If there is a 50% chance of stopping this, fine.
We're 99.9999999% likely to kill ourselves within a thousand years anyway,
Why prolong it and make nature suffer?
A perfect world would be a balance with nature, as well. It would serve nature well.
If not, well, we probably die out due to this "hell on earth" and things will be fine.
We're just one species, it's not right to do what we do.